Vulnerability CVE-2009-4411
Published: 2009-12-24   Modified: 2012-02-13

Description:
The (1) setfacl and (2) getfacl commands in XFS acl 2.2.47, when running in recursive (-R) mode, follow symbolic links even when the --physical (aka -P) or -L option is specified, which might allow local users to modify the ACL for arbitrary files or directories via a symlink attack.

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

CVSS2 => (AV:L/AC:H/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.7/10
6.4/10
1.9/10
Exploit range
Attack complexity
Authentication
Local
High
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
XFS -> ACL 

 References:
http://www.securityfocus.com/bid/37455
http://xforce.iss.net/xforce/xfdb/55004
http://www.openwall.com/lists/oss-security/2009/12/23/2
http://www.mandriva.com/security/advisories?name=MDVSA-2009:345
http://secunia.com/advisories/38420
http://secunia.com/advisories/37907
http://osvdb.org/61302
http://oss.sgi.com/bugzilla/show_bug.cgi?id=790
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00000.html
http://git.savannah.gnu.org/cgit/acl.git/commit/?id=63451a0
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=499076
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