Balabit Syslog-ng Open Source Edition up to 2.0.5 input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Balabit Syslog-ng Open Source Edition up to 2.0.5. It has been classified as problematic. Affected by this issue is some unknown functionality. This manipulation causes input validation. The identification of this vulnerability is CVE-2007-6437. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Balabit Syslog-ng Open Source Edition up to 2.0.5. It has been declared as problematic. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

Balabit syslog-ng 2.0.x before 2.0.6 and 2.1.x before 2.1.8 allows remote attackers to cause a denial of service (crash) via a message with a timestamp that does not contain a trailing space, which triggers a NULL pointer dereference.

The bug was discovered 12/14/2007. The weakness was shared 12/17/2007 (Website). The advisory is shared at xforce.iss.net. This vulnerability is known as CVE-2007-6437 since 12/19/2007. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 29984 (Debian DSA-1464-1 : syslog-ng - NULL pointer dereference), 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.

Upgrading to version 2.0.6 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (39082), Tenable (29984), SecurityFocus (BID 26897†), OSVDB (39551†) and Secunia (SA28118†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 29984
Nessus Name: Debian DSA-1464-1 : syslog-ng - NULL pointer dereference
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 60207
OpenVAS Name: Debian Security Advisory DSA 1464-1 (syslog-ng)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Syslog-ng Open Source Edition 2.0.6

Timelineinfo

12/14/2007 🔍
12/17/2007 +3 days 🔍
12/17/2007 +0 days 🔍
12/17/2007 +0 days 🔍
12/17/2007 +0 days 🔍
12/18/2007 +1 days 🔍
12/19/2007 +0 days 🔍
12/19/2007 +0 days 🔍
01/06/2008 +18 days 🔍
01/15/2008 +9 days 🔍
01/16/2008 +1 days 🔍
03/16/2015 +2616 days 🔍
08/02/2019 +1600 days 🔍

Sourcesinfo

Advisory: xforce.iss.net
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-6437 (🔍)
GCVE (CVE): GCVE-0-2007-6437
GCVE (VulDB): GCVE-100-40129

OVAL: 🔍

X-Force: 39082
SecurityFocus: 26897 - BalaBit IT Security syslog-ng NULL-Pointer Dereference Denial of Service Vulnerability
Secunia: 28118
OSVDB: 39551 - syslog-ng Crafted Timestamp NULL Pointer Dereference Remote DoS
SecurityTracker: 1019105
Vulnerability Center: 17274 - Balabit syslog-ng Remote Denial of Service, Medium
Vupen: ADV-2007-4257

Entryinfo

Created: 03/16/2015 13:43
Updated: 08/02/2019 17:01
Changes: 03/16/2015 13:43 (77), 08/02/2019 17:01 (9)
Complete: 🔍
Cache ID: 216:7DD:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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