CVE-2010-3431 - The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka

CVE-2010-3431

Summary

The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not check the return value of the setfsuid system call, which might allow local users to obtain sensitive information by leveraging an unintended uid, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435.

References

Vulnerable Configurations

cpe:2.3:a:linux-pam:linux-pam:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:1.1.2:*:*:*:*:*:*:*

CVSS

Base:	1.9 (as of 13-02-2023 - 04:24)
Impact:
Exploitability:

CWE

NVD-CWE-Other

CAPEC

Access

Vector	Complexity	Authentication
LOCAL	MEDIUM	NONE

Impact

Confidentiality	Integrity	Availability
PARTIAL	NONE	NONE

cvss-vector via4

AV:L/AC:M/Au:N/C:P/I:N/A:N

refmap via4

confirm	http://git.altlinux.org/people/ldv/packages/?p=pam.git;a=commit;h=843807a3a90f52e7538be756616510730a24739a https://bugzilla.redhat.com/show_bug.cgi?id=641361
gentoo	GLSA-201206-31
mlist	[oss-security] 20100921 Re: Minor security flaw with pam_xauth [oss-security] 20100924 Re: Minor security flaw with pam_xauth [oss-security] 20100927 Re: Minor security flaw with pam_xauth [oss-security] 20100928 Re: Minor security flaw with pam_xauth [oss-security] 20101004 Re: Minor security flaw with pam_xauth [oss-security] 20101025 Re: Minor security flaw with pam_xauth
secunia	49711

Last major update

13-02-2023 - 04:24

Published

24-01-2011 - 18:00

Last modified

13-02-2023 - 04:24