Samhain update code buffer overflow

samhain-update-bo (18000) The risk level is classified as HighHigh Risk

Description:

Samhain is vulnerable to a buffer overflow in the database update code, caused by improper bounds checking of user-supplied input. By using the -t update command line option, a local attacker could overflow a buffer and execute arbitrary code on the system with privileges of the Samhain process, once a malicious directory is checked.

Platforms Affected:

  • samhain design labs, Samhain 1.8.9 - 2.0.1

Remedy:

Upgrade to the latest version of Samhain (2.0.2 or later), available from the Samhain Download Web page. See References.

Consequences:

Gain Access

References:

  • Samhain Download Web page, The SAMHAIN file integrity / intrusion detection system at http://la-samhna.de/samhain/s_download.html.
  • Samhain Web page, The SAMHAIN file integrity / intrusion detection system at http://la-samhna.de/samhain/index.html.
  • BID-11635: Samhain Labs Samhain Database Update Local Heap Overflow Vulnerability
  • CVE-2004-2409: Buffer overflow in the sh_hash_compdata function for Samhain 1.8.9 through 2.0.1, when running in update mode (-t update), might allow attackers to execute arbitrary code.
  • CVE-2004-2410: Unknown vulnerability in sh_hash_compdata for Samhain 1.8.9 through 2.0.1 might allow attackers to cause a denial of service (null pointer dereference).
  • OSVDB ID: 11525: samhain sh_hash_compdata() Function Local Overflow
  • OSVDB ID: 11594: samhain sh_hash_compdata() Function NULL Pointer Dereference DoS
  • SA13130: Samhain Database Update Code Buffer Overflow Vulnerability
  • SECTRACK ID: 1012142: samhain sh_hash_compdata() Buffer Overflow May Let Local Users Gain Elevated Privileges

Reported:

Nov 09, 2004

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