nfs-utils up to 1.1.2 Access Restriction hosts_ctl access control

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in nfs-utils. This issue affects the function hosts_ctl of the component Access Restriction. The manipulation leads to access control. This vulnerability is uniquely identified as CVE-2008-4552. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in nfs-utils. It has been rated as critical. This issue affects the function hosts_ctl of the component Access Restriction. 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. The summary by CVE is:

The good_client function in nfs-utils 1.0.9, and possibly other versions before 1.1.3, invokes the hosts_ctl function with the wrong order of arguments, which causes TCP Wrappers to ignore netgroups and allows remote attackers to bypass intended access restrictions.

The bug was discovered 08/11/2008. The weakness was disclosed 10/14/2008 (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2008-4552 since 10/14/2008. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 64 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 35796 (GLSA-200903-06 : nfs-utils: Access restriction bypass), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165638 (SUSE Enterprise Linux Security Update (SUSE-SR:2009:001)).

Upgrading to version 1.1.2 eliminates this vulnerability. A possible mitigation has been published 6 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (45895), Tenable (35796), SecurityFocus (BID 31823†), OSVDB (49182†) and Secunia (SA32346†). The entries VDB-45619, VDB-45239, VDB-45178 and VDB-44655 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 35796
Nessus Name: GLSA-200903-06 : nfs-utils: Access restriction bypass
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 880676
OpenVAS Name: CentOS Update for nfs-utils CESA-2009:1321 centos5 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: nfs-utils 1.1.2

Timelineinfo

08/11/2008 🔍
08/11/2008 +0 days 🔍
08/11/2008 +0 days 🔍
10/14/2008 +64 days 🔍
10/14/2008 +0 days 🔍
10/14/2008 +0 days 🔍
02/24/2009 +133 days 🔍
03/07/2009 +11 days 🔍
03/08/2009 +1 days 🔍
03/17/2015 +2200 days 🔍
08/28/2019 +1625 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-4552 (🔍)
GCVE (CVE): GCVE-0-2008-4552
GCVE (VulDB): GCVE-100-44477

OVAL: 🔍

X-Force: 45895
SecurityFocus: 31823 - 'nfs-utils' Package 'hosts_ctl()' Security Bypass Vulnerability
Secunia: 32346
OSVDB: 49182 - CVE-2008-4552 - nfs - nfs-utils - Security Bypass Issue
Vulnerability Center: 21063 - NFS-Utils 1.0.9 Remote Bypass Intended Access Restrictions Vulnerability, High
Vupen: ADV-2010-0528

See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 08/28/2019 10:05
Changes: 03/17/2015 16:11 (77), 08/28/2019 10:05 (8)
Complete: 🔍
Cache ID: 216:020:103

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