Sendmail up to 8.12.3 alias/map/statistics/pid denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.6$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Sendmail (Mail Server Software). Affected is an unknown part of the file alias/map/statistics/pid. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

Sendmail 8.9.0 through 8.12.3 allows local users to cause a denial of service by obtaining an exclusive lock on the (1) alias, (2) map, (3) statistics, and (4) pid files.

The issue has been introduced in 05/19/1998. The weakness was published 05/23/2002 by dynamo (Website). The advisory is available at sendmail.org. This vulnerability is traded as CVE-2002-1827 since 06/29/2005. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

A public exploit has been developed in ANSI C. 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 1465 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 8.12.4 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (9162).

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.6

VulDB Base Score: 4.0
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: Unknown

Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Sendmail 8.12.4

Timelineinfo

05/19/1998 🔍
05/23/2002 +1465 days 🔍
05/23/2002 +0 days 🔍
05/24/2002 +1 days 🔍
06/03/2002 +10 days 🔍
12/31/2002 +211 days 🔍
11/25/2004 +695 days 🔍
06/29/2005 +216 days 🔍
08/04/2014 +3323 days 🔍
07/03/2017 +1064 days 🔍

Sourcesinfo

Advisory: sendmail.org
Researcher: dynamo
Status: Not defined
Confirmation: 🔍

CVE: CVE-2002-1827 (🔍)
X-Force: 9162
Vulnerability Center: 6133 - DoS in Sendmail <= 8.12.3 via File Lock, Medium
SecurityFocus: 4822 - Sendmail File Locking Denial Of Service Vulnerability

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

Entryinfo

Created: 08/04/2014 17:09
Updated: 07/03/2017 10:39
Changes: 08/04/2014 17:09 (62), 07/03/2017 10:39 (8)
Complete: 🔍

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