GnuCash multiple temporary files symlink

gnucash-symlink (32558) The risk level is classified as MediumMedium Risk

Description:

GnuCash could allow a local attacker to launch a symlink attack. GnuCash creates temporary files insecurely. A local attacker could exploit this vulnerability to create or overwrite arbitrary files on the system with the privileges of the user.

*CVSS:

Base Score: 2.6
  Access Vector: Local
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 2.3
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

File Manipulation

Remedy:

Upgrade to the latest version of GnuCash (2.0.5 or later), available from the GnuCash Web site. See References.

For Mandriva Linux (gnucash):
Refer to MDKSA-2007:046 for patch, upgrade, or suggested workaround information. See References.

References:

  • GnuCash Web site: Open Source Accounting Software | GnuCash.
  • SourceForge.net: Gnucash - File Release Notes and Changelog- Release Name: 2.0.5.
  • BID-22610: GNUCash Insecure Temporary File Creation Vulnerability
  • CVE-2007-0007: gnucash 2.0.4 and earlier allows local users to overwrite arbitrary files via a symlink attack on the (1) gnucash.trace, (2) qof.trace, and (3) qof.trace.[PID] temporary files.
  • OSVDB ID: 33224: GnuCash Multiple trace File Symlink Arbitrary File Overwrite
  • SA24225: GnuCash Insecure Temporary Files

Platforms Affected:

  • GnuCash Project GnuCash prior to 2.0.5
  • MandrakeSoft Mandrake Linux 2007
  • MandrakeSoft Mandrake Linux 2007 X86_64

Reported:

Feb 19, 2007

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