Linux-nfs nfs-utils 1.2.0/1.2.1/1.2.2/1.2.3 Filesystem host_reliable_addrinfo access control

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux-nfs nfs-utils 1.2.0/1.2.1/1.2.2/1.2.3. This affects the function host_reliable_addrinfo of the component Filesystem. Such manipulation leads to access control. This vulnerability is traded as CVE-2011-2500. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux-nfs nfs-utils 1.2.0/1.2.1/1.2.2/1.2.3. Affected by this issue is the function host_reliable_addrinfo of the component Filesystem. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was shared 02/15/2014 with Brown as Bug 716949 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is handled as CVE-2011-2500 since 06/15/2011. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 55528 (Fedora 15 : nfs-utils-1.2.4-0.fc15 (2011-8934)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119811 (Red Hat Update for nfs-utils (RHSA-2011:1534)).

Upgrading to version 1.2.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (55528), SecurityFocus (BID 48465†) and Vulnerability Center (SBV-32026†). The entry VDB-66450 is related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55528
Nessus Name: Fedora 15 : nfs-utils-1.2.4-0.fc15 (2011-8934)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 863334
OpenVAS Name: Fedora Update for nfs-utils FEDORA-2011-8934
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: nfs-utils 1.2.1

Timelineinfo

06/15/2011 🔍
06/27/2011 +12 days 🔍
06/27/2011 +0 days 🔍
06/28/2011 +1 days 🔍
07/07/2011 +9 days 🔍
02/15/2014 +954 days 🔍
02/15/2014 +0 days 🔍
03/24/2015 +402 days 🔍
02/01/2022 +2506 days 🔍

Sourcesinfo

Advisory: Bug 716949
Organization: Brown
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-2500 (🔍)
GCVE (CVE): GCVE-0-2011-2500
GCVE (VulDB): GCVE-100-66404

OVAL: 🔍

SecurityFocus: 48465 - Linux Kernel 'nfs-utils' Remote Unauthorized Access Vulnerability
Vulnerability Center: 32026 - Linux Kernel 2.6.38-rc2 and Earlier \x27nfs-utils\x27 Allows Remote Security Bypass Vulnerability of NFS Exported Filesystem, High

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 02/01/2022 18:02
Changes: 03/24/2015 15:54 (65), 03/24/2017 18:38 (12), 02/01/2022 18:02 (3)
Complete: 🔍
Cache ID: 216::103

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