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Vulnerability Details : CVE-2009-4411

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.
Publish Date : 2009-12-24 Last Update Date : 2017-08-16
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- CVSS Scores & Vulnerability Types

CVSS Score
3.7
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 264

- Vendor Statements

Not vulnerable. This issue did not affect the versions of acl as shipped with Red Hat Enterprise Linux 3, 4, or 5.
Source: Redhat

- Related OVAL Definitions

Title Definition Id Class Family
CVE-2009-4411 oval:org.opensuse.security:def:20094411 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-4411

# Product Type Vendor Product Version Update Edition Language
1 Application XFS ACL 2.2.47 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
XFS ACL 1

- References For CVE-2009-4411

http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00000.html
SUSE SUSE-SR:2010:002
http://oss.sgi.com/bugzilla/show_bug.cgi?id=790 CONFIRM
http://www.securityfocus.com/bid/37455
BID 37455 XFS ACL 'setfacl' and 'getfacl' Symbolic Link Handling Security Bypass Vulnerability Release Date:2014-12-24
https://exchange.xforce.ibmcloud.com/vulnerabilities/55004
XF acl-setfacl-getfacl-symlink(55004)
http://www.openwall.com/lists/oss-security/2009/12/23/2
MLIST [oss-security] 20091223 CVE request: acl 2.2.47 always follows symlinks
http://www.mandriva.com/security/advisories?name=MDVSA-2009:345
MANDRIVA MDVSA-2009:345
http://git.savannah.gnu.org/cgit/acl.git/commit/?id=63451a0 CONFIRM
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=499076 CONFIRM

- Metasploit Modules Related To CVE-2009-4411

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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