Sendmail up to 8.13.5 Email Receiver memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

A vulnerability was found in Sendmail up to 8.13.5 (Mail Server Software). It has been classified as critical. This affects an unknown part of the component Email Receiver. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Signal handler race condition in Sendmail 8.13.x before 8.13.6 allows remote attackers to execute arbitrary code by triggering timeouts in a way that causes the setjmp and longjmp function calls to be interrupted and modify unexpected memory locations.

The bug was discovered 03/22/2006. The weakness was presented 03/23/2006 by Mark Dowd with ISS X-Force (Website). It is possible to read the advisory at xforce.iss.net. This vulnerability is uniquely identified as CVE-2006-0058 since 01/01/2006. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

After before and not just, there has been an exploit disclosed. The exploit is shared for download at rapturesecurity.org. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 21132 (Mandrake Linux Security Advisory : sendmail (MDKSA-2006:058)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at sendmail.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 5739. In this case the pattern 552 is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4322.

The vulnerability is also documented in the databases at X-Force (24584), Tenable (21132) and Exploit-DB (2051).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 21132
Nessus Name: Mandrake Linux Security Advisory : sendmail (MDKSA-2006:058)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 56468
OpenVAS Name: Debian Security Advisory DSA 1015-1 (sendmail)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: sendmail.org

Snort ID: 5739
Snort Message: SMTP headers too long server response
Snort Pattern: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

01/01/2006 🔍
03/22/2006 +80 days 🔍
03/22/2006 +0 days 🔍
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03/22/2006 +0 days 🔍
03/23/2006 +0 days 🔍
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03/23/2006 +0 days 🔍
03/23/2006 +0 days 🔍
03/26/2006 +3 days 🔍
06/22/2006 +88 days 🔍
06/15/2019 +4741 days 🔍

Sourcesinfo

Advisory: xforce.iss.net
Researcher: Mark Dowd
Organization: ISS X-Force
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-0058 (🔍)
OVAL: 🔍

X-Force: 24584 - Sendmail signal handler timeout race condition, High Risk
SecurityTracker: 1015801
Vulnerability Center: 10783 - Sendmail Signal Handler Race Condition Allows Remote Code Execution, Critical
SecurityFocus: 17192 - Sendmail Asynchronous Signal Handling Remote Code Execution Vulnerability
Secunia: 20723 - IBM HMC Sendmail and OpenSSH Vulnerabilities, Highly Critical
OSVDB: 24037 - Sendmail Signal Handler Race Condition Remote Overflow
Vupen: ADV-2006-2490

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/23/2006 15:25
Updated: 06/15/2019 19:03
Changes: 03/23/2006 15:25 (115), 06/15/2019 19:03 (1)
Complete: 🔍

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