CVE-2008-4192
First published: Thu Aug 28 2008(Updated: )
The cman package as shipped with Red Hat Enterprise Linux 5 and within Fedora release starting from 9 is prone to the symlink attack. Affected file: /sbin/fence_egenera Relevant part of the code: 296 sub pserver_shutdown 297 { 298 my $rtrn=1; 299 local *egen_log; 300 open(egen_log,">/tmp/eglog"); 301 for (my $trys=0; $trys<20; $trys++) 302 { 303 last if (pserver_status != 0); 304 305 306 my $status = $_; . . . Description: A malicious user could precreate a symlink, pointing to the file /tmp/eglog, Subsequent run of the '/sbin/egenera' command would destroy / truncate the target of this link to zero length. References: <a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496374">http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496374</a> (part for cman) Affected versions: This issue affects the version of cman package, as shipped with Red Hat Enteprise Linux 5 and those, shipped within the Fedora release starting from 9. The cman package as shipped with Red Hat Enteprise Linux 4 Cluster Suite product and that one, shipped within Fedora release of 8, are not affected by this issue.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Cluster Manager (CMAN) | =2.20080629 | |
| Red Hat Cluster Manager (CMAN) | =2.20080801 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2008/09/18/3
- http://www.openwall.com/lists/oss-security/2008/09/24/2
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496410
- https://bugzilla.redhat.com/show_bug.cgi?id=460476
- http://www.openwall.com/lists/oss-security/2008/10/30/2
- https://bugs.gentoo.org/show_bug.cgi?id=235770
- http://dev.gentoo.org/~rbu/security/debiantemp/cman
- http://www.securityfocus.com/bid/30898
- http://secunia.com/advisories/32387
- https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00666.html
- http://uvw.ru/report.lenny.txt
- http://secunia.com/advisories/32390
- http://secunia.com/advisories/31887
- http://www.ubuntu.com/usn/USN-875-1
- http://www.redhat.com/support/errata/RHSA-2011-0266.html
- http://www.vupen.com/english/advisories/2011/0419
- http://secunia.com/advisories/43362
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44845
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496374
- http://git.fedorahosted.org/git/cluster.git?p=cluster.git;a=commitdiff;h=db7da413
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=251358
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=233428
- https://rhn.redhat.com/errata/RHSA-2011-0266.html
Frequently Asked Questions
What is the severity of CVE-2008-4192?
The severity of CVE-2008-4192 is classified as low due to its nature as a symlink attack.
How do I fix CVE-2008-4192?
To fix CVE-2008-4192, upgrade the cman package to a version that contains the security patch.
Which systems are affected by CVE-2008-4192?
CVE-2008-4192 affects Red Hat Enterprise Linux 5 and Fedora releases starting from version 9.
What is the primary vulnerability type of CVE-2008-4192?
The primary vulnerability type of CVE-2008-4192 is a symlink attack involving the /sbin/fence_egenera file.
When was CVE-2008-4192 published?
CVE-2008-4192 was published in September 2008.
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