libvirt up to 0.9.8 DNS/DHCP Query network/bridge_driver.c networkReloadIptablesRules access control

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in libvirt up to 0.9.8. The impacted element is the function networkReloadIptablesRules of the file network/bridge_driver.c of the component DNS/DHCP Query Handler. The manipulation results in access control. This vulnerability is identified as CVE-2011-4600. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in libvirt up to 0.9.8 (Virtualization Software). Affected is the function networkReloadIptablesRules of the file network/bridge_driver.c of the component DNS/DHCP Query Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The networkReloadIptablesRules function in network/bridge_driver.c in libvirt before 0.9.9 does not properly handle firewall rules on bridge networks when libvirtd is restarted, which might allow remote attackers to bypass intended access restrictions via a (1) DNS or (2) DHCP query.

The weakness was released 04/14/2016 (Website). The advisory is available at ubuntu.com. This vulnerability is traded as CVE-2011-4600 since 11/28/2011. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 57437 (Fedora 16 : libvirt-0.9.6-4.fc16 (2011-17267)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196366 (Ubuntu Security Notification for Libvirt Vulnerabilities (USN-2867-1)).

Upgrading to version 0.9.9 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (57437). Entries connected to this vulnerability are available at VDB-68558, VDB-69177 and VDB-82388. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

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-284 / CWE-266
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: 57437
Nessus Name: Fedora 16 : libvirt-0.9.6-4.fc16 (2011-17267)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 863877
OpenVAS Name: Fedora Update for libvirt FEDORA-2011-17267
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libvirt 0.9.9
Patch: ae1232b298323dd7bef909426e2ebafa6bca9157

Timelineinfo

11/28/2011 🔍
12/21/2011 +23 days 🔍
01/05/2012 +15 days 🔍
04/14/2016 +1560 days 🔍
04/14/2016 +0 days 🔍
04/15/2016 +1 days 🔍
07/24/2022 +2291 days 🔍

Sourcesinfo

Advisory: USN-2867-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-4600 (🔍)
GCVE (CVE): GCVE-0-2011-4600
GCVE (VulDB): GCVE-100-82386
See also: 🔍

Entryinfo

Created: 04/15/2016 10:11
Updated: 07/24/2022 15:37
Changes: 04/15/2016 10:11 (55), 10/07/2018 08:46 (20), 07/24/2022 15:37 (5)
Complete: 🔍
Cache ID: 216:904:103

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