Big Sam $displayBegin variable denial of service
|bigsam-displaybegin-dos (8478)||Medium Risk|
Built-In Guestbook Stand-Alone Module (Big Sam) is vulnerable to a denial of service attack. A remote attacker can send a specially-crafted HTTP request containing a large number in the $displayBegin variable in the bigsam_guestbook.php script to consume a large amount of available system resources.
Denial of Service
Upgrade to the latest version of Big Sam (1.1.09 or later), available from the Big Sam Web site. See References.
- Big Sam Web site: bigsam.
- BugTraq Mailing List, Mon Mar 18 2002 - 17:31:23 CST: [ARL02-A11] Big Sam (Built-In Guestbook Stand-Alone Module) Multiple Vulnerabilities.
- BID-4312: Big Sam Web Root Disclosure Vulnerability
- CVE-2002-0462: bigsam_guestbook.php for Big Sam (Built-In Guestbook Stand-Alone Module) 1.1.08 and earlier allows remote attackers to cause a denial of service (CPU consumption) or obtain the absolute path of the web server via a displayBegin parameter with a very large number, which leaks the web path in an error message when PHP safe_mode is enabled, or consumes resources when safe_mode is not enabled.
- OSVDB ID: 5287: Big Sam bigsam_guestbook.php Path Disclosure
- OSVDB ID: 5288: Big Sam bigsam_guestbook.php DoS
- Georges Zadrozynski & Rémi Lecoupé-Grainville Big Sam prior to 1.1.09
Mar 18, 2002
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