expat srand cryptographic issue

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

Summaryinfo

A vulnerability labeled as critical has been found in expat. Impacted is the function srand. The manipulation results in cryptographic issue. This vulnerability is reported as CVE-2012-6702. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in expat (the affected version unknown). It has been classified as critical. Affected is the function srand. The manipulation with an unknown input leads to a cryptographic issue vulnerability. CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Expat, when used in a parser that has not called XML_SetHashSalt or passed it a seed of 0, makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms via vectors involving use of the srand function.

The weakness was disclosed 06/16/2016 (Website). The advisory is shared for download at openwall.com. This vulnerability is traded as CVE-2012-6702 since 06/03/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1600.

The vulnerability scanner Nessus provides a plugin with the ID 91506 (Debian DSA-3597-1 : expat - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370347 (Apple iTunes Prior to 12.6 Multiple Vulnerabilities (APPLE-SA-2017-03-22-1) and (APPLE-SA-2017-03-22-2)).

Upgrading 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 databases at Tenable (91506) and SecurityFocus (BID 91483†). The entries VDB-50128, VDB-61176, VDB-61175 and VDB-76263 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
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: 91506
Nessus Name: Debian DSA-3597-1 : expat - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802379
OpenVAS Name: Fedora Update for expat FEDORA-2016-7c6e7a9265
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/03/2016 🔍
06/07/2016 +4 days 🔍
06/08/2016 +1 days 🔍
06/16/2016 +8 days 🔍
06/16/2016 +0 days 🔍
06/17/2016 +1 days 🔍
06/27/2016 +10 days 🔍
08/24/2022 +2249 days 🔍

Sourcesinfo

Advisory: USN-3010-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-6702 (🔍)
GCVE (CVE): GCVE-0-2012-6702
GCVE (VulDB): GCVE-100-87972

OVAL: 🔍

SecurityFocus: 91483 - Libexpat Expat CVE-2012-6702 Predictable Random Number Generator Weakness

See also: 🔍

Entryinfo

Created: 06/17/2016 16:41
Updated: 08/24/2022 08:19
Changes: 06/17/2016 16:41 (60), 01/26/2019 11:33 (16), 08/24/2022 08:19 (3)
Complete: 🔍
Cache ID: 216:039:103

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