Vulnerability Details : CVE-2011-2500
The host_reliable_addrinfo function in support/export/hostname.c in nfs-utils before 1.2.4 does not properly use DNS to verify access to NFS exports, which allows remote attackers to mount filesystems by establishing crafted DNS A and PTR records.
Products affected by CVE-2011-2500
- cpe:2.3:a:linux-nfs:nfs-utils:*:*:*:*:*:*:*:*
- cpe:2.3:a:linux-nfs:nfs-utils:1.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:linux-nfs:nfs-utils:1.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:linux-nfs:nfs-utils:1.2.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2011-2500
0.77%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-2500
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
CWE ids for CVE-2011-2500
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-2500
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http://marc.info/?l=linux-nfs&m=130875695821953&w=2
'[PATCH] nfs: fix host_reliable_addrinfo (try #2)' - MARC
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http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/Changelog-nfs-utils-1.2.4/download
Download NFS from SourceForge.net
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http://rhn.redhat.com/errata/RHSA-2011-1534.html
RHSA-2011:1534 - Security Advisory - Red Hat Customer Portal
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https://bugzilla.redhat.com/show_bug.cgi?id=716949
716949 – (CVE-2011-2500) CVE-2011-2500 nfs-utils: Improper authentication of an incoming request when an IP based authentication used
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http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/
NFS - Browse /nfs-utils/1.2.4 at SourceForge.net
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