Lynx lynxcgi: URI command execute
| lynx-lynxcgi-command-execute (23119) |  High Risk |
Description:
Lynx could allow a remote attacker to execute arbitrary commands caused by a vulnerability in the lynxcgi, lynxexec or lynxprog URI handlers. A remote attacker could send a specially-crafted request containing arbitrary commands to the lynxcgi, lynxexec or lynxprog URI handlers that would be executed once the victim clicks the link.
Platforms Affected:
- Gentoo, Linux
- Lynx, Lynx 2.8.5
- MandrakeSoft, Mandrake Linux 10.1 X86_64
- MandrakeSoft, Mandrake Linux 10.1
- MandrakeSoft, Mandrake Linux 2006
- MandrakeSoft, Mandrake Linux 2006 X86_64
- MandrakeSoft, Mandrake Linux LE2005 X86_64
- MandrakeSoft, Mandrake Linux LE2005
- MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 2.1
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Multi Network Firewall 2.0
- OpenPKG, OpenPKG 2.3
- OpenPKG, OpenPKG 2.4
- OpenPKG, OpenPKG 2.5
- OpenPKG, OpenPKG CURRENT
- RedHat, Enterprise Linux 2.1 ES
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Enterprise Linux 2.1 WS
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 ES
- RedHat, Linux Advanced Workstation 2.1 Itanium
Remedy:
Upgrade to the latest version of Lynx (2.8.6dev.15 or later), available from the Lynx Web site. See References.
For Red Hat Linux:
Refer to RHSA-2005:839-3 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2005-11-09 for patch, upgrade, or suggested workaround information. See References.
For OpenPKG:
Refer to OpenPKG Security Advisory OpenPKG-SA-2005.026 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- Full-Disclosure Mailing List, Fri Oct 07 2005 - 04:32:45 CDT, iDefense Security Advisory 11.11.05: Multiple Vendor Lynx Command Injection Vulnerability at http://archives.neohapsis.com/archives/fulldisclosure/2005-11/0294.html.
- iDEFENSE Security Advisory 11.11.05, Multiple Vendor Lynx Command Injection Vulnerability at http://archives.neohapsis.com/archives/bugtraq/2005-11/0162.html.
- Lynx Web site, Lynx Information at http://lynx.browser.org/.
- ASA-2006-035: Lynx Command Injection (SCOSA-2005.55)
- BID-15395: Lynx URI Handlers Arbitrary Command Execution Vulnerability
- CVE-2005-2929: Lynx 2.8.5, and other versions before 2.8.6dev.15, allows remote attackers to execute arbitrary commands via (1) lynxcgi:, (2) lynxexec, and (3) lynxprog links, which are not properly restricted in the default configuration in some environments.
- GLSA-200511-09: Lynx: Arbitrary command execution
- MDKSA-2005:211: Updated lynx packages fix critical vulnerability
- OpenPKG-SA-2005.026: Lynx
- RHSA-2005-839: lynx security update
- SA17372: Lynx "lynxcgi:" URI Handler Arbitrary Command Execution
- SA18659: Avaya Intuity Audix Lynx Arbitrary Command Execution
- SECTRACK ID: 1015195: Lynx `lynxcgt:` Handler Configuration Bug Lets Remote Users Execute Arbitrary Commands
- VUPEN/ADV-2005-2394: Lynx Browser lynxcgi Feature Remote Command Injection Vulnerability
Reported:
Nov 11, 2005
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