VDB-18452 · CVE-2002-0432 · XFDB 8426

Citadel UX 5.90 SMTP Server sysdep.c lprintf/cprintf HELO memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
10.0	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Citadel UX 5.90. Impacted is the function lprintf/cprintf of the file sysdep.c of the component SMTP Server. Such manipulation of the argument HELO leads to memory corruption. This vulnerability is uniquely identified as CVE-2002-0432. No exploit exists.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Citadel UX 5.90. Affected by this issue is the function lprintf/cprintf of the file sysdep.c of the component SMTP Server. The manipulation of the argument HELO 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. CVE summarizes:

Buffer overflow in (1) lprintf and (2) cprintf in sysdep.c of Citadel/UX 5.90 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via attacks such as a long HELO command to the SMTP server.

The weakness was disclosed 07/26/2002 (Website). The advisory is shared for download at online.securityfocus.com. This vulnerability is handled as CVE-2002-0432. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/18/2024).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (8426) and SecurityFocus (BID 4263†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Citadel

Name

Version

5.90

CPE 2.3info

🔍

CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/09/2002 🔍
07/26/2002 +139 days 🔍
07/26/2002 +0 days 🔍
07/22/2014 +4379 days 🔍
06/18/2024 +3619 days 🔍

Sourcesinfo

Advisory: online.securityfocus.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2002-0432 (🔍)
GCVE (CVE): GCVE-0-2002-0432
GCVE (VulDB): GCVE-100-18452
X-Force: 8426
SecurityFocus: 4263 - Citadel/UX SMTP Server Buffer Overflow Vulnerability

Entryinfo

Created: 07/22/2014 20:06
Updated: 06/18/2024 19:51
Changes: 07/22/2014 20:06 (47), 06/07/2018 09:06 (6), 06/18/2024 19:51 (17)
Complete: 🔍
Cache ID: 216:DB7:103