Sun Sendmail up to 8.12.9 parseaddr.c prescan EarlyShovel memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as very critical has been discovered in Sun Sendmail up to 8.12.9. This affects the function prescan of the file parseaddr.c of the component Sendmail. The manipulation results in memory corruption (EarlyShovel). This vulnerability was named CVE-2003-0694. The attack may be performed from remote. In addition, an exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as critical has been found in Sun Sendmail up to 8.12.9 (Mail Server Software). Affected is the function prescan of the file parseaddr.c of the component Sendmail. The manipulation with an unknown input leads to a memory corruption vulnerability (EarlyShovel). 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. CVE summarizes:

The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code via buffer overflow attacks, as demonstrated using the parseaddr function in parseaddr.c.

The bug was discovered 09/17/2003. The weakness was presented 09/17/2003 by Michal Zalewski (Website). The advisory is shared for download at lists.netsys.com. This vulnerability is traded as CVE-2003-0694 since 08/14/2003. It is possible to launch the attack remotely. 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 and been published 9 months after the advisory. The exploit is shared for download at packetstormsecurity.nl. It is declared as highly functional. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 13808 (SUSE-SA:2003:040: sendmail, sendmail-tls), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 50080 (Sendmail Prescan() Variant Remote Buffer Overrun Vulnerability).

Upgrading to version 8.12.10 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 patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 654. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 2384.

The vulnerability is also documented in the databases at X-Force (13204), Tenable (13808), SecurityFocus (BID 8641†), OSVDB (2577†) and Secunia (SA9758†). Further details are available at sendmail.com. See VDB-26 and VDB-20846 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.6
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 13808
Nessus Name: SUSE-SA:2003:040: sendmail, sendmail-tls
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 53668
OpenVAS Name: Debian Security Advisory DSA 384-1 (sendmail)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: sendmail_prescan.rb
MetaSploit Name: Sendmail SMTP Address prescan Memory Corruption
MetaSploit File: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Upgrade: Sendmail 8.12.10
Patch: sendmail.org

Snort ID: 654
Snort Message: SERVER-MAIL RCPT TO overflow
Snort Class: 🔍
TippingPoint: 🔍
SourceFire IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

08/14/2003 🔍
09/17/2003 +34 days 🔍
09/17/2003 +0 days 🔍
09/17/2003 +0 days 🔍
09/18/2003 +1 days 🔍
09/22/2003 +4 days 🔍
09/24/2003 +1 days 🔍
10/06/2003 +12 days 🔍
10/06/2003 +0 days 🔍
05/07/2004 +214 days 🔍
07/25/2004 +79 days 🔍
01/22/2025 +7486 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: lists.netsys.com
Researcher: Michal Zalewski
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2003-0694 (🔍)
GCVE (CVE): GCVE-0-2003-0694
GCVE (VulDB): GCVE-100-288

OVAL: 🔍

CERT: 🔍
X-Force: 13204 - Sendmail prescan function buffer overflow, High Risk
SecurityFocus: 8641
Secunia: 9758 - Sendmail prescan() Vulnerability, Highly Critical
OSVDB: 2577 - Sendmail prescan() Function Remote Overflow
SecuriTeam: securiteam.com
Vulnerability Center: 2176 - Buffer Overflow in Sendmail <=8.12.9 Prescan() Function Enables Arbitrary Code Execution, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/18/2003 12:13
Updated: 01/22/2025 08:16
Changes: 09/18/2003 12:13 (70), 07/14/2017 10:08 (43), 03/08/2021 17:50 (2), 08/31/2024 20:36 (14), 01/22/2025 08:16 (1)
Complete: 🔍
Cache ID: 216:839:103

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