CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
Percentile
88.2%
Lynx is a fully-featured WWW client for users running cursor-addressable, character-cell display devices such as vt100 terminals and terminal emulators.
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.
A remote attacker can entice a user to access a malicious HTTP server, causing Lynx to execute arbitrary commands.
Disable “lynxcgi” links by specifying the following directive in lynx.cfg:
TRUSTED_LYNXCGI:none
All Lynx users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/lynx-2.8.5-r2"
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Gentoo | any | all | www-client/lynx | < 2.8.5-r2 | UNKNOWN |