CVE-2009-4411

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Summary

CVECVE-2009-4411
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-12-24 16:30:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionThe (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.

Risk And Classification

Primary CVSS: v2.0 3.7 from [email protected]

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

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Xfs Acl 2.2.47 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
XFS Acl Recursive Symlink Processing Security Issue - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
XFS ACL 'setfacl' and 'getfacl' Symbolic Link Handling Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Patch
[security-announce] SUSE Security Summary Report: SUSE-SR:2010:002 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
oss-security - CVE request: acl 2.2.47 always follows symlinks af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
#499076 - CVE-2009-4411: Physical walk no longer ignores all symlinks - Debian Bug report logs af854a3a-2127-422b-91ae-364da2661108 bugs.debian.org
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
Support / Security / Advisories / / MDVSA-2009:345 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
osvdb.org/61302 af854a3a-2127-422b-91ae-364da2661108 osvdb.org
acl.git - acl af854a3a-2127-422b-91ae-364da2661108 git.savannah.gnu.org
Bug 790 – getfacl 2.2.47 follows symlinks, even without -L af854a3a-2127-422b-91ae-364da2661108 oss.sgi.com
SUSE Update for Multiple Packages - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2010-01-21Tomas HogerNot vulnerable. This issue did not affect the versions of acl as shipped with Red Hat Enterprise Linux 3, 4, or 5.

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