Sympa sympa.pl symlink

sympa-sympa-symlink (44499) The risk level is classified as MediumMedium Risk

Description:

Sympa could allow a local attacker to launch a symlink attack. The sympa.pl script creates temporary files insecurely. A local attacker could exploit this vulnerability by creating a symbolic link from a temporary file to other files on the system, which would allow the attacker to gain unauthorized access to the system and modify arbitrary files with the privileges of the victim.

*CVSS:

Base Score: 3.3
  Access Vector: Local
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 2.9
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

File Manipulation

Remedy:

Refer to the CVS repository for patch, upgrade or suggested workaround information. See References.

References:

  • CVS Repository: Sympa.
  • Debian Bug report logs - #494969: sympa: Leftover debug code may lead to data loss.
  • Sympa Web site: Sympa .
  • BID-30727: Sympa 'sympa.pl' Insecure Temporary File Creation Vulnerability
  • CVE-2008-4476: sympa.pl in sympa 5.3.4 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/sympa_aliases.$$ temporary file. NOTE: wwsympa.fcgi was also reported, but the issue occurred in a dead function, so it is not a vulnerability.
  • MDVSA-2009:263: sympa
  • SA31458: Sympa "sympa.pl" Insecure Temporary Files

Platforms Affected:

  • Debian Sympa 5.4.3
  • MandrakeSoft Mandrake Linux 2008.1 X86_64
  • MandrakeSoft Mandrake Linux 2008.1
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • Mandriva Enterprise Server 5
  • Mandriva Enterprise Server 5 X86_64
  • Mandriva Linux 2009.0 X86_64

Reported:

Aug 13, 2008

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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