IBM DB2 up to 10.5 SSL/TLS Certificate input validation

CVSS Meta Temp Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in IBM DB2 9.5/9.7/9.8/10.1/10.5. Impacted is an unknown function of the component SSL/TLS Certificate Handler. The manipulation results in input validation. This vulnerability is reported as CVE-2013-6747. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as critical has been found in IBM DB2 9.5/9.7/9.8/10.1/10.5 (Database Software). Affected is an unknown functionality of the component SSL/TLS Certificate Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

IBM GSKit 7.x before 7.0.4.48 and 8.x before 8.0.50.16, as used in IBM Security Directory Server (ISDS) and Tivoli Directory Server (TDS), allows remote attackers to cause a denial of service (application crash or hang) via a malformed X.509 certificate chain.

The weakness was disclosed 05/26/2014 as swg21671732 / Reference 1671732 as confirmed advisory (Website). The advisory is shared for download at www-01.ibm.com. This vulnerability is traded as CVE-2013-6747 since 11/08/2013. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 72220 (IBM Tivoli Directory Server < 6.1.0.59 / 6.2.0.34 / 6.3.0.26 with GSKit < 7.0.4.48 / 8.0.50.16 X.509 Certificate Chain DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 19986 (IBM DB2 Multiple Vulnerabilities (swg21633303)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (89863), Tenable (72220), SecurityFocus (BID 65156†), OSVDB (102556†) and Secunia (SA56403†). The entries VDB-13393, VDB-13395, VDB-68134 and VDB-70800 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 72220
Nessus Name: IBM Tivoli Directory Server < 6.1.0.59 / 6.2.0.34 / 6.3.0.26 with GSKit < 7.0.4.48 / 8.0.50.16 X.509 Certificate Chain DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/08/2013 🔍
01/24/2014 +77 days 🔍
01/24/2014 +0 days 🔍
01/27/2014 +3 days 🔍
01/29/2014 +2 days 🔍
02/21/2014 +23 days 🔍
03/05/2014 +12 days 🔍
05/26/2014 +82 days 🔍
05/26/2014 +0 days 🔍
05/29/2014 +3 days 🔍
06/20/2021 +2579 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: swg21671732 / Reference 1671732
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-6747 (🔍)
GCVE (CVE): GCVE-0-2013-6747
GCVE (VulDB): GCVE-100-13392

IAVM: 🔍

X-Force: 89863 - IBM GSKit denial of service, High Risk
SecurityFocus: 65156 - Multiple IBM Products CVE-2013-6747 Denial of Service Vulnerability
Secunia: 56403 - IBM Tivoli Access Manager for e-business GSKit Denial of Service Vulnerability, Moderately Critical
OSVDB: 102556
SecurityTracker: 1029687
Vulnerability Center: 43448 - IBM GSKit, ISDS and Tivoli Directory Server Remote DoS Vulnerability via Malformed Certificates, High

See also: 🔍

Entryinfo

Created: 05/29/2014 22:13
Updated: 06/20/2021 13:35
Changes: 05/29/2014 22:13 (45), 05/22/2017 09:15 (37), 06/20/2021 13:30 (3), 06/20/2021 13:35 (1)
Complete: 🔍
Cache ID: 216::103

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