| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200511-09"> |
| <title>Lynx: Arbitrary command execution</title> |
| <synopsis> |
| Lynx is vulnerable to an issue which allows the remote execution of |
| arbitrary commands. |
| </synopsis> |
| <product type="ebuild">lynx</product> |
| <announced>November 13, 2005</announced> |
| <revised>November 13, 2005: 01</revised> |
| <bug>112213</bug> |
| <access>remote</access> |
| <affected> |
| <package name="www-client/lynx" auto="yes" arch="*"> |
| <unaffected range="ge">2.8.5-r2</unaffected> |
| <vulnerable range="lt">2.8.5-r2</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| Lynx is a fully-featured WWW client for users running |
| cursor-addressable, character-cell display devices such as vt100 |
| terminals and terminal emulators. |
| </p> |
| </background> |
| <description> |
| <p> |
| iDefense labs discovered a problem within the feature to execute |
| local cgi-bin programs via the "lynxcgi:" URI handler. Due to a |
| configuration error, the default settings allow websites to specify |
| commands to run as the user running Lynx. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| A remote attacker can entice a user to access a malicious HTTP |
| server, causing Lynx to execute arbitrary commands. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| Disable "lynxcgi" links by specifying the following directive in |
| lynx.cfg: |
| </p> |
| <code> |
| TRUSTED_LYNXCGI:none</code> |
| </workaround> |
| <resolution> |
| <p> |
| All Lynx users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=www-client/lynx-2.8.5-r2"</code> |
| </resolution> |
| <references> |
| <uri link="http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2929">CVE-2005-2929</uri> |
| <uri link="http://www.idefense.com/application/poi/display?id=338&type=vulnerabilities">iDefense Security Advisory 11.11.05</uri> |
| </references> |
| <metadata tag="requester" timestamp="Fri, 11 Nov 2005 20:17:54 +0000"> |
| taviso |
| </metadata> |
| <metadata tag="submitter" timestamp="Fri, 11 Nov 2005 21:30:52 +0000"> |
| adir |
| </metadata> |
| <metadata tag="bugReady" timestamp="Sun, 13 Nov 2005 17:03:02 +0000"> |
| koon |
| </metadata> |
| </glsa> |