CVE-2011-2500

nfs-utils: Improper authentication of an incoming request when an IP based authentication used

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función host_reliable_addrinfo en support/export/hostname.c en nfs-utils anterior a 1.2.4 no utiliza debidamente DNS para verificar el acceso a exportaciones NFS, lo que permite a atacantes remotos montar sistemas de ficheros mediante el establecimiento de registros DNS A y PTR manipulados.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Adjacent

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-06-15 CVE Reserved
2014-02-15 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (6)

URL	Tag	Source
http://marc.info/?l=linux-nfs&m=130875695821953&w=2	Mailing List
http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4	X_refsource_confirm
http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/Changelog-nfs-utils-1.2.4/download	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2011-1534.html	2014-03-06
https://bugzilla.redhat.com/show_bug.cgi?id=716949	2011-12-05
https://access.redhat.com/security/cve/CVE-2011-2500	2011-12-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux-nfs Search vendor "Linux-nfs"		Nfs-utils Search vendor "Linux-nfs" for product "Nfs-utils"				<= 1.2.3 Search vendor "Linux-nfs" for product "Nfs-utils" and version " <= 1.2.3"		-		Affected
Linux-nfs Search vendor "Linux-nfs"		Nfs-utils Search vendor "Linux-nfs" for product "Nfs-utils"				1.2.0 Search vendor "Linux-nfs" for product "Nfs-utils" and version "1.2.0"		-		Affected
Linux-nfs Search vendor "Linux-nfs"		Nfs-utils Search vendor "Linux-nfs" for product "Nfs-utils"				1.2.1 Search vendor "Linux-nfs" for product "Nfs-utils" and version "1.2.1"		-		Affected
Linux-nfs Search vendor "Linux-nfs"		Nfs-utils Search vendor "Linux-nfs" for product "Nfs-utils"				1.2.2 Search vendor "Linux-nfs" for product "Nfs-utils" and version "1.2.2"		-		Affected