SuSE 10 Security Update : Kerberos 5 (ZYPP Patch Number 7899) - Nessus

Critical Plugin ID: 57431

This page contains detailed information about the SuSE 10 Security Update : Kerberos 5 (ZYPP Patch Number 7899) 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: 57431
Name: SuSE 10 Security Update : Kerberos 5 (ZYPP Patch Number 7899)
Filename: suse_krb5-7899.nasl
Vulnerability Published: N/A
This Plugin Published: 2012-01-03
Last Modification Time: 2021-01-19
Plugin Version: 1.14
Plugin Type: local
Plugin Family: SuSE Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/SuSE/release, Host/SuSE/rpm-list

Vulnerability Information

Severity: Critical
Vulnerability Published: N/A
Patch Published: 2011-12-29
CVE [?]: CVE-2011-1526, CVE-2011-4862
CPE [?]: cpe:/o:suse:suse_linux
Exploited by Malware: True

Synopsis

The remote SuSE 10 host is missing a security-related patch.

Description

This update of krb5 fixes two security issues.

- A remote code execution in the kerberized telnet daemon was fixed. (This only affects the ktelnetd from the krb5-appl RPM, not the regular telnetd supplied by SUSE.). (CVE-2011-4862)

- / MITKRB5-SA-2011-005: Fixed krb5 ftpd unauthorized file access problems. (CVE-2011-1526)

Solution

Apply ZYPP patch number 7899.

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the SuSE 10 Security Update : Kerberos 5 (ZYPP Patch Number 7899) vulnerability:

Metasploit: exploit/linux/telnet/telnet_encrypt_keyid
[Linux BSD-derived Telnet Service Encryption Key ID Buffer Overflow]
Metasploit: exploit/freebsd/telnet/telnet_encrypt_keyid
[FreeBSD Telnet Service Encryption Key ID Buffer Overflow]
Metasploit: auxiliary/scanner/telnet/telnet_encrypt_overflow
[Telnet Service Encryption Key ID Overflow Detection]
Exploit-DB: exploits/linux/remote/18368.rb
[EDB-18368: Linux BSD-derived Telnet Service Encryption Key ID - Remote Buffer Overflow (Metasploit)]
Exploit-DB: exploits/bsd/remote/18369.rb
[EDB-18369: FreeBSD - Telnet Service Encryption Key ID Buffer Overflow (Metasploit)]
GitHub: https://github.com/Snoopy-Sec/Localroot-ALL-CVE
[CVE-2011-4862]
GitHub: https://github.com/anoaghost/Localroot_Compile
[CVE-2011-4862]
GitHub: https://github.com/hdbreaker/GO-CVE-2011-4862
[CVE-2011-4862: Go Exploit for CVE-2011-4862]
GitHub: https://github.com/kpawar2410/CVE-2011-4862
[CVE-2011-4862: Final Project for Security and Privacy CS 600.443]
GitHub: https://github.com/lol-fi/cve-2011-4862
[CVE-2011-4862]
ExploitHub: EH-11-760

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:N/AC:L/Au:N/C:C/I:C/A:C

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

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The text description of this plugin is (C) Novell, Inc.
#

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

if (description)
{
  script_id(57431);
  script_version("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2011-1526", "CVE-2011-4862");

  script_name(english:"SuSE 10 Security Update : Kerberos 5 (ZYPP Patch Number 7899)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SuSE 10 host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update of krb5 fixes two security issues.

  - A remote code execution in the kerberized telnet daemon
    was fixed. (This only affects the ktelnetd from the
    krb5-appl RPM, not the regular telnetd supplied by
    SUSE.). (CVE-2011-4862)

  - / MITKRB5-SA-2011-005: Fixed krb5 ftpd unauthorized file
    access problems. (CVE-2011-1526)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-1526.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-4862.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply ZYPP patch number 7899.");
  script_set_cvss_base_vector("CVSS2#AV:N/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:"exploithub_sku", value:"EH-11-760");
  script_set_attribute(attribute:"exploit_framework_exploithub", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Linux BSD-derived Telnet Service Encryption Key ID Buffer Overflow');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:suse:suse_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/12/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/01/03");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2021 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) exit(0, "Local checks are not enabled.");
if (!get_kb_item("Host/SuSE/release")) exit(0, "The host is not running SuSE.");
if (!get_kb_item("Host/SuSE/rpm-list")) exit(1, "Could not obtain the list of installed packages.");

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) exit(1, "Failed to determine the architecture type.");
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") exit(1, "Local checks for SuSE 10 on the '"+cpu+"' architecture have not been implemented.");


flag = 0;
if (rpm_check(release:"SLED10", sp:4, reference:"krb5-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLED10", sp:4, reference:"krb5-client-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLED10", sp:4, reference:"krb5-devel-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLED10", sp:4, cpu:"x86_64", reference:"krb5-32bit-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLED10", sp:4, cpu:"x86_64", reference:"krb5-devel-32bit-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLES10", sp:4, reference:"krb5-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLES10", sp:4, reference:"krb5-apps-clients-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLES10", sp:4, reference:"krb5-apps-servers-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLES10", sp:4, reference:"krb5-client-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLES10", sp:4, reference:"krb5-devel-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLES10", sp:4, reference:"krb5-server-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLES10", sp:4, cpu:"x86_64", reference:"krb5-32bit-1.4.3-19.49.49.1")) flag++;
if (rpm_check(release:"SLES10", sp:4, cpu:"x86_64", reference:"krb5-devel-32bit-1.4.3-19.49.49.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else exit(0, "The host is 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/suse_krb5-7899.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\suse_krb5-7899.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/suse_krb5-7899.nasl

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How to Run

Here is how to run the SuSE 10 Security Update : Kerberos 5 (ZYPP Patch Number 7899) 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 SuSE Local Security Checks plugin family.
On the right side table select SuSE 10 Security Update : Kerberos 5 (ZYPP Patch Number 7899) plugin ID 57431.
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 suse_krb5-7899.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a suse_krb5-7899.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - suse_krb5-7899.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 suse_krb5-7899.nasl -t <IP/HOST>

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References

See also:

Similar and related Nessus plugins:

57405 - CentOS 4 / 5 : krb5 (CESA-2011:1851)
57406 - CentOS 6 : krb5-appl (CESA-2011:1852)
79271 - Cisco Email Security Appliance Telnet Remote Code Execution (cisco-sa-20120126-ironport)
79272 - Cisco Content Security Management Appliance Telnet Remote Code Execution (cisco-sa-20120126-ironport)
79273 - Cisco Web Security Appliance Telnet Remote Code Execution (cisco-sa-20120126-ironport)
57512 - Debian DSA-2372-1 : heimdal - buffer overflow
57513 - Debian DSA-2373-1 : inetutils - buffer overflow
57515 - Debian DSA-2375-1 : krb5, krb5-appl - buffer overflow
57442 - Fedora 15 : krb5-appl-1.0.1-8.fc15 (2011-17492)
57443 - Fedora 16 : krb5-appl-1.0.2-2.fc16 (2011-17493)
57403 - FreeBSD : krb5-appl -- telnetd code execution vulnerability (4ddc78dc-300a-11e1-a2aa-0016ce01e285)
57656 - GLSA-201201-14 : MIT Kerberos 5 Applications: Multiple vulnerabilities
58101 - GLSA-201202-05 : Heimdal: Arbitrary code execution
57412 - Mandriva Linux Security Advisory : krb5-appl (MDVSA-2011:195)
74578 - openSUSE Security Update : krb5-appl (openSUSE-2012-17)
68412 - Oracle Linux 4 / 5 : krb5 (ELSA-2011-1851)
68413 - Oracle Linux 6 : krb5-appl (ELSA-2011-1852)
68477 - Oracle Linux 5 : krb5 (ELSA-2012-0306)
79475 - OracleVM 2.2 : krb5 (OVMSA-2011-0015)
57408 - RHEL 4 / 5 : krb5 (RHSA-2011:1851)
57409 - RHEL 6 : krb5-appl (RHSA-2011:1852)
64017 - RHEL 5 : krb5 (RHSA-2011:1853)
64018 - RHEL 6 : krb5-appl (RHSA-2011:1854)
79283 - RHEL 5 : rhev-hypervisor5 (RHSA-2012:0168)
61213 - Scientific Linux Security Update : krb5-appl on SL6.x i386/x86_64
61214 - Scientific Linux Security Update : krb5 on SL4.x, SL5.x i386/x86_64
80781 - Oracle Solaris Third-Party Patch Update : telnet (cve_2011_4862_buffer_overflow)
75564 - openSUSE Security Update : krb5-appl (openSUSE-SU-2012:0019-1)
75886 - openSUSE Security Update : krb5-appl (openSUSE-SU-2012:0019-1)
57430 - SuSE 11.1 Security Update : Kerberos 5 (SAT Patch Number 5594)
57462 - FreeBSD 'telnetd' Daemon Remote Buffer Overflow
58535 - VMSA-2012-0006 : VMware Workstation, ESXi, and ESX address several security issues
89107 - VMware ESX / ESXi Multiple Vulnerabilities (VMSA-2012-0006) (remote check)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file suse_krb5-7899.nasl version 1.14. For more plugins, visit the Nessus Plugin Library.

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SuSE 10 Security Update : Kerberos 5 (ZYPP Patch Number 7899) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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