Permissions, Privileges, and Access Controls in Linux kernel - CVE-2011-1585
Published: June 8, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU42783
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2011-1585
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The cifs_find_smb_ses function in fs/cifs/connect.c in the Linux kernel before 2.6.36 does not properly determine the associations between users and sessions, which allows local users to bypass CIFS share authentication by leveraging a mount of a share by a different user.
Affected software
Linux kernel
How to mitigate CVE-2011-1585
Install update from vendor's website.
Linux kernel - update to 2.6.36
External References
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ff67b720c02c36e54d55b88c2931879b7db1cd2
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
- http://www.openwall.com/lists/oss-security/2011/04/15/8
- https://bugzilla.redhat.com/show_bug.cgi?id=697394
- https://github.com/torvalds/linux/commit/4ff67b720c02c36e54d55b88c2931879b7db1cd2