Citadel SMTP server up to 7.10 makeuserkey memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

A vulnerability was found in Citadel SMTP server up to 7.10 (Mail Server Software). It has been rated as critical. This issue affects the function makeuserkey. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in Citadel SMTP server 7.10 and earlier allows remote attackers to execute arbitrary code via a long RCPT TO command, which is not properly handled by the makeuserkey function. NOTE: some of these details were obtained from third party information.

The bug was discovered 01/21/2008. The weakness was released 01/23/2008 by prdelka (Website). The advisory is shared at xforce.iss.net. The identification of this vulnerability is CVE-2008-0394 since 01/22/2008. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 30123 (Citadel SMTP makeuserkey Function RCPT TO Command Remote Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SMTP problems and running in the context r.

Upgrading eliminates this vulnerability. Attack attempts may be identified with Snort ID 654.

The vulnerability is also documented in the databases at X-Force (39807), Tenable (30123) and Exploit-DB (4949).

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

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

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: No
Remote: Yes

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

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 30123
Nessus Name: Citadel SMTP makeuserkey Function RCPT TO Command Remote Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Saint ID: exploit_info/citadel_smtp_rcpt_to
Saint Name: Citadel SMTP server RCPT TO buffer overflow

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

07/06/2007 🔍
01/21/2008 +199 days 🔍
01/21/2008 +0 days 🔍
01/22/2008 +1 days 🔍
01/22/2008 +0 days 🔍
01/23/2008 +1 days 🔍
01/23/2008 +0 days 🔍
01/28/2008 +5 days 🔍
01/29/2008 +1 days 🔍
03/16/2015 +2603 days 🔍
08/04/2019 +1602 days 🔍

Sourcesinfo

Advisory: xforce.iss.net
Researcher: prdelka
Status: Confirmed

CVE: CVE-2008-0394 (🔍)
X-Force: 39807
SecurityTracker: 1019255
Vulnerability Center: 17468 - Citadel SMTP Server Vulnerability Allows Remote Attackers to Execute Code and Cause DoS, High
SecurityFocus: 27376 - Citadel SMTP RCPT TO Remote Buffer Overflow Vulnerability
Secunia: 28590
OSVDB: 40516 - Citadel - SMTP RCPT TO Remote Buffer Overflow Issue
Vupen: ADV-2008-0252

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

Entryinfo

Created: 03/16/2015 13:43
Updated: 08/04/2019 10:17
Changes: 03/16/2015 13:43 (77), 08/04/2019 10:17 (12)
Complete: 🔍
Cache ID: 18:9FD:103

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