Race condition in the rmtree function in File::Path 1.08 (lib/File/Path.pm) in Perl 5.8.8 allows local users to to delete arbitrary files via a symlink attack, a different vulnerability than CVE-2005-0448, CVE-2004-0452, and CVE-2008-2827. NOTE: this is a regression error related to CVE-2005-0448. It is different from CVE-2008-5302 due to affected versions.

The remote VMware ESX host is missing a security-related patch. It is, therefore, affected by multiple vulnerabilities, including remote code execution vulnerabilities, in several third-party components and libraries :

  - GNU cpio
  - GNU cpio on 64-bit
  - GNU tar
  - Kerberos 5
  - Perl
  - PostgreSQL
  - Safe Module for Perl Automagic Methods
  - Samba smbd

The remote host is affected by the vulnerability described in GLSA-201311-17 (Perl: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Perl. Please review the       CVE identifiers referenced below for details.
  Impact :

    A local attacker could cause a Denial of Service condition or perform       symlink attacks to overwrite arbitrary files with the privileges of the       user running the application. A context-dependent attacker could cause a       Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2010-0458 advisory.

    - CVE-2008-5302 - use latest patch without Cwd module
    - CVE-2008-5302 perl: File::Path rmtree race condition (CVE-2005-0448)       reintroduced after upstream rebase to 5.8.8-1
    - CVE-2010-1168 perl Safe: Intended restriction bypass via object references
    - CVE-2010-1447 Safe 2.26 and earlier: Intended restriction bypass via Perl       object references in code executed outside safe compartment

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Perl is a high-level programming language commonly used for system administration utilities and web programming. The Safe extension module allows users to compile and execute Perl code in restricted compartments. The File::Path module allows users to create and remove directory trees.

The Safe module did not properly restrict the code of implicitly called methods (such as DESTROY and AUTOLOAD) on implicitly blessed objects returned as a result of unsafe code evaluation. These methods could have been executed unrestricted by Safe when such objects were accessed or destroyed. A specially crafted Perl script executed inside of a Safe compartment could use this flaw to bypass intended Safe module restrictions. (CVE-2010-1168)

The Safe module did not properly restrict code compiled in a Safe compartment and executed out of the compartment via a subroutine reference returned as a result of unsafe code evaluation. A specially crafted Perl script executed inside of a Safe compartment could use this flaw to bypass intended Safe module restrictions, if the returned subroutine reference was called from outside of the compartment.
(CVE-2010-1447)

Multiple race conditions were found in the way the File::Path module's rmtree function removed directory trees. A malicious, local user with write access to a directory being removed by a victim, running a Perl script using rmtree, could cause the permissions of arbitrary files to be changed to world-writable and setuid, or delete arbitrary files via a symbolic link attack, if the victim had the privileges to change the permissions of the target files or to remove them. (CVE-2008-5302, CVE-2008-5303)

These packages upgrade the Safe extension module to version 2.27.
Refer to the Safe module's Changes file at the following link for a full list of changes.
http://cpansearch.perl.org/src/RGARCIA/Safe-2.27/Changes

All applications using the Safe or File::Path modules must be restarted for this update to take effect.

NOTE: SL 50-52 x86_64 releases originally had a perl.i386 package. It was taken out of the x86_64 SL5 distribution and is not part of this security update. If you have one of these earlier SL5 x86_64 distributions and your perl update does not work due to conflicts, you should do a 'yum remove perl.i386' before doing your update on these earlier SL 5 x86_64 releases.

a. Service Console update for cpio

   The service console package cpio is updated to version 2.5-6.RHEL3    for ESX 3.x versions and updated to version 2.6-23.el5_4.1 for    ESX 4.x versions.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2005-4268 and CVE-2010-0624 to the issues    addressed in the update for ESX 3.x and the names CVE-2007-4476 and    CVE-2010-0624 to the issues addressed in the update for ESX 4.x.

b. Service Console update for tar

   The service console package tar is updated to version    1.13.25-16.RHEL3 for ESX 3.x versions and updated to version    1.15.1-23.0.1.el5_4.2 for ESX 4.x versions.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the name CVE-2010-0624 to the issue addressed in the    update for ESX 3.x and the names CVE-2007-4476 and CVE-2010-0624    to the issues addressed in the update for ESX 4.x.

c. Service Console update for samba

   The service console packages for samba are updated to version    samba-3.0.9-1.3E.17vmw, samba-client-3.0.9-1.3E.17vmw and    samba-common-3.0.9-1.3E.17vmw.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the name CVE-2010-2063 to the issue addressed in this    update.

   Note :
   The issue mentioned above is present in the Samba server (smbd) and    is not present in the Samba client or Samba common packages.

   To determine if your system has Samba server installed do a    'rpm -q samba`.

   The following lists when the Samba server is installed on the ESX    service console :

   - ESX 4.0, ESX 4.1      The Samba server is not present on ESX 4.0 and ESX 4.1.

   - ESX 3.5      The Samba server is present if an earlier patch for Samba has been      installed.

   - ESX 3.0.3      The Samba server is present if ESX 3.0.3 was upgraded from an      earlier version of ESX 3 and a Samba patch was installed on that      version.

   The Samba server is not needed to operate the service console and    can be be disabled without loss of functionality to the service    console.

d. Service Console update for krb5

   The service console package krb5 is updated to version 1.2.7-72    for ESX 3.x versions and to version 1.6.1-36.el5_5.4 for ESX 4.x    versions.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the name CVE-2010-1321 to the issue addressed in    these updates.

e. Service Console update for perl

   The service console package perl is updated to version    5.8.0-101.EL3 for ESX 3.x versions and version 5.8.8-32.el5_5.1    for ESX 4.x versions.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2010-1168 and CVE-2010-1447 to the issues    addressed in the update for ESX 3.x and the names CVE-2008-5302,    CVE-2008-5303, CVE-2010-1168, and CVE-2010-1447 to the issues    addressed in the update for ESX 4.x.

Multiple vulnerabilities has been discovered and corrected in Path.pm and Safe.pm which could lead to escalated privilegies (CVE-2008-5302, CVE-2008-5303, CVE-2010-1168, CVE-2010-1447). The updated packages have been patched to correct these issues.

Updated perl packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Perl is a high-level programming language commonly used for system administration utilities and web programming. The Safe extension module allows users to compile and execute Perl code in restricted compartments. The File::Path module allows users to create and remove directory trees.

The Safe module did not properly restrict the code of implicitly called methods (such as DESTROY and AUTOLOAD) on implicitly blessed objects returned as a result of unsafe code evaluation. These methods could have been executed unrestricted by Safe when such objects were accessed or destroyed. A specially crafted Perl script executed inside of a Safe compartment could use this flaw to bypass intended Safe module restrictions. (CVE-2010-1168)

The Safe module did not properly restrict code compiled in a Safe compartment and executed out of the compartment via a subroutine reference returned as a result of unsafe code evaluation. A specially crafted Perl script executed inside of a Safe compartment could use this flaw to bypass intended Safe module restrictions, if the returned subroutine reference was called from outside of the compartment.
(CVE-2010-1447)

Multiple race conditions were found in the way the File::Path module's rmtree function removed directory trees. A malicious, local user with write access to a directory being removed by a victim, running a Perl script using rmtree, could cause the permissions of arbitrary files to be changed to world-writable and setuid, or delete arbitrary files via a symbolic link attack, if the victim had the privileges to change the permissions of the target files or to remove them. (CVE-2008-5302, CVE-2008-5303)

Red Hat would like to thank Tim Bunce for responsibly reporting the CVE-2010-1168 and CVE-2010-1447 issues. Upstream acknowledges Nick Cleaton as the original reporter of CVE-2010-1168, and Tim Bunce and Rafael Garcia-Suarez as the original reporters of CVE-2010-1447.

These packages upgrade the Safe extension module to version 2.27.
Refer to the Safe module's Changes file, linked to in the References, for a full list of changes.

Users of perl are advised to upgrade to these updated packages, which correct these issues. All applications using the Safe or File::Path modules must be restarted for this update to take effect.

The remote host is running a version of Mac OS X 10.5 that does not have Security Update 2010-002 applied.

This security update contains fixes for the following products :

  - AppKit
  - Application Firewall
  - AFP Server
  - Apache
  - ClamAV
  - CoreTypes
  - CUPS
  - curl
  - Cyrus IMAP
  - Cyrus SASL
  - Disk Images
  - Directory Services
  - Event Monitor
  - FreeRADIUS
  - FTP Server
  - iChat Server
  - Image RAW
  - Libsystem
  - Mail
  - Mailman
  - OS Services
  - Password Server
  - perl
  - PHP
  - PS Normalizer
  - Ruby
  - Server Admin
  - SMB
  - Tomcat
  - unzip
  - vim
  - Wiki Server
  - X11
  - xar

Jonathan Smith discovered that the Archive::Tar Perl module did not correctly handle symlinks when extracting archives. If a user or automated system were tricked into opening a specially crafted tar file, a remote attacker could over-write arbitrary files.
(CVE-2007-4829)

Tavis Ormandy and Will Drewry discovered that Perl did not correctly handle certain utf8 characters in regular expressions. If a user or automated system were tricked into using a specially crafted expression, a remote attacker could crash the application, leading to a denial of service. Ubuntu 8.10 was not affected by this issue.
(CVE-2008-1927)

A race condition was discovered in the File::Path Perl module's rmtree function. If a local attacker successfully raced another user's call of rmtree, they could create arbitrary setuid binaries. Ubuntu 6.06 and 8.10 were not affected by this issue. (CVE-2008-5302)

A race condition was discovered in the File::Path Perl module's rmtree function. If a local attacker successfully raced another user's call of rmtree, they could delete arbitrary files. Ubuntu 6.06 was not affected by this issue. (CVE-2008-5303).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

USN-700-1 fixed vulnerabilities in Perl. Due to problems with the Ubuntu 8.04 build, some Perl .ph files were missing from the resulting update. This update fixes the problem. We apologize for the inconvenience.

Jonathan Smith discovered that the Archive::Tar Perl module did not correctly handle symlinks when extracting archives. If a user or automated system were tricked into opening a specially crafted tar file, a remote attacker could over-write arbitrary files.
(CVE-2007-4829)

Tavis Ormandy and Will Drewry discovered that Perl did not correctly handle certain utf8 characters in regular expressions. If a user or automated system were tricked into using a specially crafted expression, a remote attacker could crash the application, leading to a denial of service.
Ubuntu 8.10 was not affected by this issue. (CVE-2008-1927)

A race condition was discovered in the File::Path Perl module's rmtree function. If a local attacker successfully raced another user's call of rmtree, they could create arbitrary setuid binaries. Ubuntu 6.06 and 8.10 were not affected by this issue. (CVE-2008-5302)

A race condition was discovered in the File::Path Perl module's rmtree function. If a local attacker successfully raced another user's call of rmtree, they could delete arbitrary files. Ubuntu 6.06 was not affected by this issue.
(CVE-2008-5303).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Paul Szabo rediscovered a vulnerability in the File::Path::rmtree function of Perl. It was possible to exploit a race condition to create setuid binaries in a directory tree or remove arbitrary files when a process is deleting this tree. This issue was originally known as CVE-2005-0448 and CVE-2004-0452, which were addressed by DSA-696-1 and DSA-620-1. Unfortunately, they were reintroduced later.

ID	Name	Product	Family	Severity
89741	VMware ESX Multiple Vulnerabilities (VMSA-2010-0013) (remote check)	Nessus	VMware ESX Local Security Checks	high
71119	GLSA-201311-17 : Perl: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	medium
68048	Oracle Linux 5 : perl (ELSA-2010-0458)	Nessus	Oracle Linux Local Security Checks	critical
60801	Scientific Linux Security Update : perl on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
49085	VMSA-2010-0013 : VMware ESX third-party updates for Service Console	Nessus	VMware ESX Local Security Checks	high
46878	Mandriva Linux Security Advisory : perl (MDVSA-2010:116)	Nessus	Mandriva Local Security Checks	high
46874	CentOS 5 : perl (CESA-2010:0458)	Nessus	CentOS Local Security Checks	high
46834	RHEL 5 : perl (RHSA-2010:0458)	Nessus	Red Hat Local Security Checks	high
45373	Mac OS X Multiple Vulnerabilities (Security Update 2010-002)	Nessus	MacOS X Local Security Checks	critical
37888	Ubuntu 6.06 LTS / 7.10 / 8.04 LTS / 8.10 : libarchive-tar-perl, perl vulnerabilities (USN-700-1)	Nessus	Ubuntu Local Security Checks	medium
37746	Ubuntu 8.04 LTS : perl regression (USN-700-2)	Nessus	Ubuntu Local Security Checks	medium
35031	Debian DSA-1678-1 : perl - design flaws	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2008-5303

critical

Tenable Plugins

high

medium

critical

high

high

high

high

high

critical

medium

medium

medium