Improper Authentication in ELinks - CVE-2012-4545
Published: January 3, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU43219
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-4545
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: elinks.or.cz
Affected software:
ELinks
ELinks
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The http_negotiate_create_context function in protocol/http/http_negotiate.c in ELinks 0.12 before 0.12pre6, when using HTTP Negotiate or GSS-Negotiate authentication, delegates user credentials through GSSAPI, which allows remote servers to authenticate as the client via the delegated credentials.
How to mitigate CVE-2012-4545
Install update from vendor's website.
Sources
- http://bugzilla.elinks.cz/show_bug.cgi?id=1124
- http://repo.or.cz/w/elinks.git/blobdiff/89056e21fc7ab8e1c2d4e06ec9d0c6d01e70669a..da18694ff7dd0b67dfcb3c417fb0579b1e7d02d7:/src/protocol/http/http_negotiate.c
- http://rhn.redhat.com/errata/RHSA-2013-0250.html
- http://secunia.com/advisories/51569
- http://www.debian.org/security/2012/dsa-2592
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:075
- http://www.securityfocus.com/bid/57065
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80882