Vulnerability Details : CVE-2011-3349
lightdm before 0.9.6 writes in .dmrc and Xauthority files using root permissions while the files are in user controlled folders. A local user can overwrite root-owned files via a symlink, which can allow possible privilege escalation.
Vulnerability category: Gain privilege
Products affected by CVE-2011-3349
- cpe:2.3:a:lightdm_project:lightdm:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2011-3349
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-3349
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2011-3349
-
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-3349
-
https://seclists.org/oss-sec/2011/q3/393
oss-sec: lightdm issuesMailing List;Third Party Advisory
-
https://bugs.launchpad.net/debian/+source/lightdm/+bug/834079
Bug #834079 “files written as root to user-controlled folders” : Bugs : lightdm package : DebianThird Party Advisory
-
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=639151
#639151 - Local privilege escalation - Debian Bug report logsMailing List;Third Party Advisory
-
https://www.securityfocus.com/bid/50506
LightDM Symlink Attack Local Privilege Escalation VulnerabilityThird Party Advisory;VDB Entry
-
https://security-tracker.debian.org/tracker/CVE-2011-3349
CVE-2011-3349Third Party Advisory
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