CVE-2012-0943 : Detail

CVE-2012-0943

A01-Broken Access Control
0.05%V3
Local
2014-05-22
21h00 +00:00
2014-05-22
20h57 +00:00
CVE.org
NVD
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CVE Descriptions

debian/guest-account in Light Display Manager (lightdm) 1.0.x before 1.0.6 and 1.1.x before 1.1.7, as used in Ubuntu Linux 11.10, allows local users to delete arbitrary files via a space in the name of a file in /tmp. NOTE: this identifier was SPLIT per ADT1/ADT2 due to different codebases and affected versions. CVE-2012-6648 has been assigned for the gdm-guest-session issue.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-264 Category : Permissions, Privileges, and Access Controls
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Metrics

Metrics Score Severity CVSS Vector Source
V2 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 36966

Publication date : 2012-03-12 23h00 +00:00
Author : Ryan Lortie
EDB Verified : Yes

source: https://www.securityfocus.com/bid/52452/info Light Display Manager (LightDM) is prone to a local arbitrary-file-deletion vulnerability. A local attacker can exploit this issue to delete arbitrary files with administrator privileges. Light Display Manager (LightDM) 1.0.6 is vulnerable. Other versions may also be affected. /usr/sbin/guest-account has this cleanup: # remove leftovers in /tmp find /tmp -mindepth 1 -maxdepth 1 -uid "$UID" | xargs rm -rf || true This runs with the cwd of the last logged in user. If the user creates a file "/tmp/x a", the file "a" gets removed from the last user's login.

Products Mentioned

Configuraton 0

Robert_ancell>>Lightdm >> Version 1.0.0

Robert_ancell>>Lightdm >> Version 1.0.1

Robert_ancell>>Lightdm >> Version 1.0.2

Robert_ancell>>Lightdm >> Version 1.0.3

Robert_ancell>>Lightdm >> Version 1.0.4

Robert_ancell>>Lightdm >> Version 1.0.5

Robert_ancell>>Lightdm >> Version 1.1.0

Robert_ancell>>Lightdm >> Version 1.1.1

Robert_ancell>>Lightdm >> Version 1.1.2

Robert_ancell>>Lightdm >> Version 1.1.3

Robert_ancell>>Lightdm >> Version 1.1.4

Robert_ancell>>Lightdm >> Version 1.1.5

Robert_ancell>>Lightdm >> Version 1.1.6

Canonical>>Ubuntu_linux >> Version 11.10

References

http://www.ubuntu.com/usn/USN-1399-2
Tags : vendor-advisory, x_refsource_UBUNTU