Jan Kara Linux DiskQuota up to 3.0 TCP Wrapper rquota_svc.c hosts_ctl access control

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Jan Kara Linux DiskQuota up to 3.0. Impacted is the function hosts_ctl of the file rquota_svc.c of the component TCP Wrapper. The manipulation leads to access control. This vulnerability is listed as CVE-2012-3417. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Jan Kara Linux DiskQuota up to 3.0 and classified as critical. This issue affects the function hosts_ctl of the file rquota_svc.c of the component TCP Wrapper. 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, and integrity. The summary by CVE is:

The good_client function in rquotad (rquota_svc.c) in Linux DiskQuota (aka quota) before 3.17 invokes the hosts_ctl function the first time without a host name, which might allow remote attackers to bypass TCP Wrappers rules in hosts.deny.

The weakness was presented 08/13/2012 by Tomas Hoger as confirmed git commit (GIT Repository). It is possible to read the advisory at linuxquota.git.sourceforge.net. The identification of this vulnerability is CVE-2012-3417 since 06/14/2012. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 74721 (openSUSE Security Update : quota (openSUSE-SU-2012:1058-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120939 (CentOS Security Update for quota (CESA-2013:0120)).

Upgrading to version 3.01 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at linuxquota.git.sourceforge.net. The best possible mitigation is suggested to be patching the affected component.

The vulnerability is also documented in the databases at X-Force (77752), Tenable (74721), SecurityFocus (BID 55066†) and Vulnerability Center (SBV-36117†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
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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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: 74721
Nessus Name: openSUSE Security Update : quota (openSUSE-SU-2012:1058-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881556
OpenVAS Name: CentOS Update for quota CESA-2013:0120 centos5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Upgrade: Linux DiskQuota 3.01
Patch: 0abbfe92536fa5854eb65572de0cf131f80e2387

Timelineinfo

06/14/2012 🔍
08/13/2012 +60 days 🔍
08/13/2012 +0 days 🔍
08/13/2012 +0 days 🔍
08/17/2012 +4 days 🔍
09/12/2012 +26 days 🔍
06/13/2014 +639 days 🔍
03/23/2015 +283 days 🔍
12/31/2024 +3571 days 🔍

Sourcesinfo

Advisory: RHSA-2013:0120
Researcher: Tomas Hoger
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-3417 (🔍)
GCVE (CVE): GCVE-0-2012-3417
GCVE (VulDB): GCVE-100-61583

OVAL: 🔍

X-Force: 77752
SecurityFocus: 55066 - Linux DiskQuota 'hosts_ctl()' Security Bypass Vulnerability
Vulnerability Center: 36117 - Linux DiskQuota Before 3.17 good_client() Remote TCP Wrappers Rules Bypass, Medium

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/31/2024 01:46
Changes: 03/23/2015 16:50 (64), 04/16/2017 11:48 (12), 12/07/2021 15:56 (4), 12/07/2021 16:02 (1), 12/31/2024 01:46 (16)
Complete: 🔍
Cache ID: 216::103

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