Sendmail up to 8.12.7 headers.c crackaddr memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

A vulnerability, which was classified as critical, was found in Sendmail (Mail Server Software). This affects the function crackaddr of the file headers.c. 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:

Buffer overflow in Sendmail 5.79 to 8.12.7 allows remote attackers to execute arbitrary code via certain formatted address fields, related to sender and recipient header comments as processed by the crackaddr function of headers.c.

The weakness was released 03/04/2003 by Mark Dowd with ISS X-Force as confirmed advisory (CERT.org). The advisory is shared at cert.org. This vulnerability is uniquely identified as CVE-2002-1337. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed by sd in ANSI C and been published before and not just after the advisory. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 792 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 15094 (Debian DSA-257-1 : sendmail - remote exploit), 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 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 2087. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1600.

The vulnerability is also documented in the databases at X-Force (10748), Tenable (15094) and Exploit-DB (411).

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: sd
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 15094
Nessus Name: Debian DSA-257-1 : sendmail - remote exploit
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53859
OpenVAS Name: Debian Security Advisory DSA 257-1 (sendmail)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Snort ID: 2087
Snort Message: SERVER-MAIL From comment overflow attempt
Snort Class: 🔍

Suricata ID: 2102259
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

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

Timelineinfo

01/01/2001 🔍
01/01/2001 +0 days 🔍
01/01/2001 +0 days 🔍
03/02/2003 +790 days 🔍
03/04/2003 +2 days 🔍
03/04/2003 +0 days 🔍
03/07/2003 +2 days 🔍
06/05/2003 +90 days 🔍
03/17/2004 +286 days 🔍
09/29/2004 +195 days 🔍
08/07/2014 +3599 days 🔍
04/17/2018 +1349 days 🔍

Sourcesinfo

Advisory: cert.org
Researcher: Mark Dowd
Organization: ISS X-Force
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2002-1337 (🔍)
OVAL: 🔍

X-Force: 10748
Vulnerability Center: 1186 - Buffer Overflow in Sendmail Allows Arbitrary Code Execution, High
SecurityFocus: 6991 - Sendmail Header Processing Buffer Overflow Vulnerability
OSVDB: 4502 - Sendmail headers.c crackaddr Function Address Field Handling Remote Overflow

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

Entryinfo

Created: 08/07/2014 18:13
Updated: 04/17/2018 10:28
Changes: 08/07/2014 18:13 (78), 04/17/2018 10:28 (22)
Complete: 🔍

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