CVE-2011-1548
First published: Wed Mar 30 2011(Updated: )
The default configuration of logrotate on Debian GNU/Linux uses root privileges to process files in directories that permit non-root write access, which allows local users to conduct symlink and hard link attacks by leveraging logrotate's lack of support for untrusted directories, as demonstrated by /var/log/postgresql/.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Logrotate | ||
| Debian GNU/Linux |
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Reference Links
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606544
- http://openwall.com/lists/oss-security/2011/03/04/22
- http://openwall.com/lists/oss-security/2011/03/06/6
- http://openwall.com/lists/oss-security/2011/03/04/16
- http://openwall.com/lists/oss-security/2011/03/10/7
- http://openwall.com/lists/oss-security/2011/03/06/5
- http://openwall.com/lists/oss-security/2011/03/05/4
- http://openwall.com/lists/oss-security/2011/03/10/6
- http://openwall.com/lists/oss-security/2011/03/06/3
- http://openwall.com/lists/oss-security/2011/03/04/26
- http://openwall.com/lists/oss-security/2011/03/07/5
- http://openwall.com/lists/oss-security/2011/03/04/27
- http://openwall.com/lists/oss-security/2011/03/04/30
- http://openwall.com/lists/oss-security/2011/03/23/11
- http://openwall.com/lists/oss-security/2011/03/06/4
- http://openwall.com/lists/oss-security/2011/03/11/3
- http://openwall.com/lists/oss-security/2011/03/04/25
- http://openwall.com/lists/oss-security/2011/03/04/31
- http://openwall.com/lists/oss-security/2011/03/05/8
- http://openwall.com/lists/oss-security/2011/03/04/18
- http://openwall.com/lists/oss-security/2011/03/04/33
- http://openwall.com/lists/oss-security/2011/03/04/28
- http://openwall.com/lists/oss-security/2011/03/04/24
- http://openwall.com/lists/oss-security/2011/03/07/6
- http://openwall.com/lists/oss-security/2011/03/08/5
- http://openwall.com/lists/oss-security/2011/03/14/26
- http://openwall.com/lists/oss-security/2011/03/05/6
- http://openwall.com/lists/oss-security/2011/03/10/3
- http://openwall.com/lists/oss-security/2011/03/10/2
- http://openwall.com/lists/oss-security/2011/03/04/32
- http://openwall.com/lists/oss-security/2011/03/04/17
- http://openwall.com/lists/oss-security/2011/03/04/29
- http://openwall.com/lists/oss-security/2011/03/04/19
- http://openwall.com/lists/oss-security/2011/03/07/11
- http://openwall.com/lists/oss-security/2011/03/11/5
- http://www.securityfocus.com/bid/47167
Frequently Asked Questions
What is the severity of CVE-2011-1548?
The severity of CVE-2011-1548 is considered high due to the potential for local users to exploit it to gain unauthorized access and manipulate log files.
How do I fix CVE-2011-1548?
To fix CVE-2011-1548, ensure that logrotate is configured to operate on trusted directories only, or update to a version that addresses this vulnerability.
Who is affected by CVE-2011-1548?
CVE-2011-1548 affects systems utilizing logrotate with insufficient directory access controls, particularly Debian GNU/Linux installations.
What kind of attacks can be performed using CVE-2011-1548?
CVE-2011-1548 enables local users to perform symlink and hard link attacks, potentially allowing them to manipulate sensitive log files.
Is there a patch available for CVE-2011-1548?
Yes, a patch is available in later releases of logrotate that addresses the vulnerabilities associated with CVE-2011-1548.
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