Slackware 12.2 / current : kernel (SSA:2009-230-01) - Nessus

High Plugin ID: 40622

This page contains detailed information about the Slackware 12.2 / current : kernel (SSA:2009-230-01) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 40622
Name: Slackware 12.2 / current : kernel (SSA:2009-230-01)
Filename: Slackware_SSA_2009-230-01.nasl
Vulnerability Published: N/A
This Plugin Published: 2009-08-20
Last Modification Time: 2021-01-14
Plugin Version: 1.17
Plugin Type: local
Plugin Family: Slackware Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/local_checks_enabled, Host/Slackware/packages, Host/Slackware/release

Vulnerability Information

Synopsis

The remote Slackware host is missing a security update.

Description

New Linux kernel packages are available for Slackware 12.2 and -current to address a security issue. A kernel bug discovered by Tavis Ormandy and Julien Tinnes of the Google Security Team could allow a local user to fill memory page zero with arbitrary code and then use the kernel sendpage operation to trigger a NULL pointer dereference, executing the code in the context of the kernel. If successfully exploited, this bug can be used to gain root access. At this time we have prepared fixed kernels for the stable version of Slackware (12.2), as well as for both 32-bit x86 and x86_64 -current versions. Additionally, we have added a package to the /patches directory for Slackware 12.1 and 12.2 that will set the minimum memory page that can be mmap()ed from userspace without additional privileges to 4096. The package will work with any kernel supporting the vm.mmap_min_addr tunable, and should significantly reduce the potential harm from this bug, as well as future similar bugs that might be found in the kernel. More updated kernels may follow.

Solution

Update the affected packages.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub, Immunity Canvas, Core Impact)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Slackware 12.2 / current : kernel (SSA:2009-230-01) vulnerability:

Metasploit: exploit/linux/local/sock_sendpage
[Linux Kernel Sendpage Local Privilege Escalation]
Exploit-DB: exploits/android/local/9477.txt
[EDB-9477: Linux Kernel 2.x (Android) - 'sock_sendpage()' Local Privilege Escalation]
Exploit-DB: exploits/linux/local/9479.c
[EDB-9479: Linux Kernel 2.4/2.6 (RedHat Linux 9 / Fedora Core 4 < 11 / Whitebox 4 / CentOS 4) - 'sock_sendpage()' Ring0 Privilege Escalation (5)]
Exploit-DB: exploits/linux/local/19933.rb
[EDB-19933: Linux Kernel 2.4.4 < 2.4.37.4 / 2.6.0 < 2.6.30.4 - 'Sendpage' Local Privilege Escalation (Metasploit)]
GitHub: https://github.com/Al1ex/LinuxEelvation
[CVE-2009-2692]
GitHub: https://github.com/De4dCr0w/Linux-kernel-EoP-exp
[CVE-2009-2692]
GitHub: https://github.com/InteliSecureLabs/Linux_Exploit_Suggester
[CVE-2009-2692]
GitHub: https://github.com/PleXone2019/Linux_Exploit_Suggester
[CVE-2009-2692]
GitHub: https://github.com/R0B1NL1N/Linux-Kernal-Exploits-m-
[CVE-2009-2692]
GitHub: https://github.com/R0B1NL1N/Linux-Kernel-Exploites
[CVE-2009-2692]
GitHub: https://github.com/Snoopy-Sec/Localroot-ALL-CVE
[CVE-2009-2692]
GitHub: https://github.com/Technoashofficial/kernel-exploitation-linux
[CVE-2009-2692]
GitHub: https://github.com/cloudsec/exploit
[CVE-2009-2692]
GitHub: https://github.com/h4x0r-dz/local-root-exploit-
[CVE-2009-2692]
GitHub: https://github.com/moshekaplan/pentesting_notes
[CVE-2009-2692]
GitHub: https://github.com/packetforger/localroot
[CVE-2009-2692]
GitHub: https://github.com/qashqao/linux-xsuggest
[CVE-2009-2692]
GitHub: https://github.com/qiantu88/Linux--exp
[CVE-2009-2692]
GitHub: https://github.com/rakjong/LinuxElevation
[CVE-2009-2692]
GitHub: https://github.com/ram4u/Linux_Exploit_Suggester
[CVE-2009-2692]
GitHub: https://github.com/skbasava/Linux-Kernel-exploit
[CVE-2009-2692]
GitHub: https://github.com/tangsilian/android-vuln
[CVE-2009-2692]
GitHub: https://github.com/taviso/iknowthis
[CVE-2009-2692]
GitHub: https://github.com/xairy/linux-kernel-exploitation
[CVE-2009-2692]
GitHub: https://github.com/offensive-security/exploitdb-bin-sploits/blob/master/bin-sploits/9477.tar.gz
[EDB-9477]
GitHub: https://github.com/jdvalentini/CVE-2009-2692
[CVE-2009-2692: Linux Null pointer dereference]
Immunity Canvas: CANVAS

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Base Score:	7.2 (High)
Impact Subscore:	10.0
Exploitability Subscore:	3.9
CVSS Temporal Score:	NA (None)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.2 (High)

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Slackware Security Advisory 2009-230-01. The text 
# itself is copyright (C) Slackware Linux, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(40622);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2009-2692");
  script_xref(name:"SSA", value:"2009-230-01");

  script_name(english:"Slackware 12.2 / current : kernel (SSA:2009-230-01)");
  script_summary(english:"Checks for updated packages in /var/log/packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Slackware host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"New Linux kernel packages are available for Slackware 12.2 and
-current to address a security issue. A kernel bug discovered by Tavis
Ormandy and Julien Tinnes of the Google Security Team could allow a
local user to fill memory page zero with arbitrary code and then use
the kernel sendpage operation to trigger a NULL pointer dereference,
executing the code in the context of the kernel. If successfully
exploited, this bug can be used to gain root access. At this time we
have prepared fixed kernels for the stable version of Slackware
(12.2), as well as for both 32-bit x86 and x86_64 -current versions.
Additionally, we have added a package to the /patches directory for
Slackware 12.1 and 12.2 that will set the minimum memory page that can
be mmap()ed from userspace without additional privileges to 4096. The
package will work with any kernel supporting the vm.mmap_min_addr
tunable, and should significantly reduce the potential harm from this
bug, as well as future similar bugs that might be found in the kernel.
More updated kernels may follow."
  );
  # http://www.slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.877234
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?f87ae2f9"
  );
  # http://www.slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.449266
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?6bdb98d3"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Linux Kernel Sendpage Local Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:kernel-firmware");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:kernel-generic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:kernel-generic-smp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:kernel-huge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:kernel-huge-smp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:kernel-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:kernel-modules-smp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:kernel-source");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:12.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/08/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/08/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2021 Tenable Network Security, Inc.");
  script_family(english:"Slackware Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Slackware/release", "Host/Slackware/packages");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("slackware.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Slackware/release")) audit(AUDIT_OS_NOT, "Slackware");
if (!get_kb_item("Host/Slackware/packages")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Slackware", cpu);


flag = 0;
if (slackware_check(osver:"12.2", pkgname:"kernel-firmware", pkgver:"2.6.27.31", pkgarch:"noarch", pkgnum:"1")) flag++;
if (slackware_check(osver:"12.2", pkgname:"kernel-generic", pkgver:"2.6.27.31", pkgarch:"i486", pkgnum:"1")) flag++;
if (slackware_check(osver:"12.2", pkgname:"kernel-generic-smp", pkgver:"2.6.27.31_smp", pkgarch:"i686", pkgnum:"2")) flag++;
if (slackware_check(osver:"12.2", pkgname:"kernel-headers", pkgver:"2.6.27.31_smp", pkgarch:"x86", pkgnum:"1")) flag++;
if (slackware_check(osver:"12.2", pkgname:"kernel-huge", pkgver:"2.6.27.31", pkgarch:"i486", pkgnum:"1")) flag++;
if (slackware_check(osver:"12.2", pkgname:"kernel-huge-smp", pkgver:"2.6.27.31_smp", pkgarch:"i686", pkgnum:"1")) flag++;
if (slackware_check(osver:"12.2", pkgname:"kernel-modules", pkgver:"2.6.27.31", pkgarch:"i486", pkgnum:"1")) flag++;
if (slackware_check(osver:"12.2", pkgname:"kernel-modules-smp", pkgver:"2.6.27.31_smp", pkgarch:"i686", pkgnum:"2")) flag++;
if (slackware_check(osver:"12.2", pkgname:"kernel-source", pkgver:"2.6.27.31_smp", pkgarch:"noarch", pkgnum:"2")) flag++;

if (slackware_check(osver:"current", pkgname:"kernel-firmware", pkgver:"2.6.29.6", pkgarch:"noarch", pkgnum:"1")) flag++;
if (slackware_check(osver:"current", pkgname:"kernel-generic", pkgver:"2.6.29.6", pkgarch:"i486", pkgnum:"1")) flag++;
if (slackware_check(osver:"current", pkgname:"kernel-generic-smp", pkgver:"2.6.29.6_smp", pkgarch:"i686", pkgnum:"1")) flag++;
if (slackware_check(osver:"current", pkgname:"kernel-headers", pkgver:"2.6.29.6_smp", pkgarch:"x86", pkgnum:"1")) flag++;
if (slackware_check(osver:"current", pkgname:"kernel-huge", pkgver:"2.6.29.6", pkgarch:"i486", pkgnum:"1")) flag++;
if (slackware_check(osver:"current", pkgname:"kernel-huge-smp", pkgver:"2.6.29.6_smp", pkgarch:"i686", pkgnum:"1")) flag++;
if (slackware_check(osver:"current", pkgname:"kernel-modules", pkgver:"2.6.29.6", pkgarch:"i486", pkgnum:"1")) flag++;
if (slackware_check(osver:"current", pkgname:"kernel-modules-smp", pkgver:"2.6.29.6_smp", pkgarch:"i686", pkgnum:"1")) flag++;
if (slackware_check(osver:"current", pkgname:"kernel-source", pkgver:"2.6.29.6_smp", pkgarch:"noarch", pkgnum:"1")) flag++;
if (slackware_check(osver:"current", arch:"x86_64", pkgname:"kernel-firmware", pkgver:"2.6.29.6", pkgarch:"noarch", pkgnum:"2")) flag++;
if (slackware_check(osver:"current", arch:"x86_64", pkgname:"kernel-generic", pkgver:"2.6.29.6", pkgarch:"x86_64", pkgnum:"2")) flag++;
if (slackware_check(osver:"current", arch:"x86_64", pkgname:"kernel-headers", pkgver:"2.6.29.6", pkgarch:"x86", pkgnum:"2")) flag++;
if (slackware_check(osver:"current", arch:"x86_64", pkgname:"kernel-huge", pkgver:"2.6.29.6", pkgarch:"x86_64", pkgnum:"2")) flag++;
if (slackware_check(osver:"current", arch:"x86_64", pkgname:"kernel-modules", pkgver:"2.6.29.6", pkgarch:"x86_64", pkgnum:"2")) flag++;
if (slackware_check(osver:"current", arch:"x86_64", pkgname:"kernel-source", pkgver:"2.6.29.6", pkgarch:"noarch", pkgnum:"2")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:slackware_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/Slackware_SSA_2009-230-01.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\Slackware_SSA_2009-230-01.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/Slackware_SSA_2009-230-01.nasl

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How to Run

Here is how to run the Slackware 12.2 / current : kernel (SSA:2009-230-01) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select Slackware Local Security Checks plugin family.
On the right side table select Slackware 12.2 / current : kernel (SSA:2009-230-01) plugin ID 40622.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl Slackware_SSA_2009-230-01.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a Slackware_SSA_2009-230-01.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - Slackware_SSA_2009-230-01.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state Slackware_SSA_2009-230-01.nasl -t <IP/HOST>

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References

SSA | Slackware Security Advisory:

2009-230-01

CWE | Common Weakness Enumeration:

CWE-119 (Weakness) Improper Restriction of Operations within the Bounds of a Memory Buffer

See also:

Similar and related Nessus plugins:

43777 - CentOS 5 : kernel (CESA-2009:1222)
40753 - CentOS 4 : kernel (CESA-2009:1223)
40808 - CentOS 3 : kernel (CESA-2009:1233)
44727 - Debian DSA-1862-1 : linux-2.6 - privilege escalation
44729 - Debian DSA-1864-1 : linux-2.6.24 - privilege escalation
44730 - Debian DSA-1865-1 : linux-2.6 - denial of service/privilege escalation
40605 - Fedora 10 : kernel-2.6.27.29-170.2.79.fc10 (2009-8647)
40606 - Fedora 11 : kernel-2.6.29.6-217.2.7.fc11 (2009-8649)
40637 - Mandriva Linux Security Advisory : kernel (MDVSA-2009:205)
40980 - Mandriva Linux Security Advisory : kernel (MDVSA-2009:233)
67914 - Oracle Linux 5 : kernel (ELSA-2009-1222)
67915 - Oracle Linux 4 : kernel (ELSA-2009-1223)
67917 - Oracle Linux 3 : kernel (ELSA-2009-1233)
79465 - OracleVM 2.1 : kernel (OVMSA-2009-0023)
79507 - OracleVM 2.2 : kernel (OVMSA-2013-0039)
40765 - RHEL 5 : kernel (RHSA-2009:1222)
40766 - RHEL 4 : kernel (RHSA-2009:1223)
40795 - RHEL 3 : kernel (RHSA-2009:1233)
63896 - RHEL 5 : kernel (RHSA-2009:1457)
63899 - RHEL 4 : kernel (RHSA-2009:1469)
60646 - Scientific Linux Security Update : kernel on SL5.x i386/x86_64
60648 - Scientific Linux Security Update : kernel on SL3.x i386/x86_64
40783 - openSUSE Security Update : kernel (kernel-1211)
40789 - openSUSE Security Update : kernel (kernel-1214)
41414 - SuSE 11 Security Update : Linux kernel (SAT Patch Numbers 1212 / 1218 / 1219)
59138 - SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 6437)
41540 - SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 6439)
42009 - openSUSE 10 Security Update : kernel (kernel-6440)
40658 - Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : linux, linux-source-2.6.15 vulnerability (USN-819-1)
42870 - VMSA-2009-0016 : VMware vCenter and ESX update release and vMA patch release address multiple security issues in third party components.
89117 - VMware ESX / ESXi Multiple Vulnerabilities (VMSA-2009-0016) (remote check)
47150 - VMSA-2010-0010 : ESX 3.5 third-party update for Service Console kernel

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file Slackware_SSA_2009-230-01.nasl version 1.17. For more plugins, visit the Nessus Plugin Library.

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Slackware 12.2 / current : kernel (SSA:2009-230-01) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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