IBM AIX 5.3.0 Mail Services improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in IBM AIX 5.3.0 (Operating System). It has been classified as critical. Affected is some unknown functionality of the component Mail Services. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, and integrity.

The issue has been introduced in 08/01/2004. The weakness was released 01/29/2007 with IBM (Website). The advisory is available at This vulnerability is traded as CVE-2007-0618 since 01/30/2007. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 911 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 28858 (AIX 5.3 TL 5 / 5.3 TL 6 : (U810439)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at

The vulnerability is also documented in the databases at X-Force (31875) and Tenable (28858). Entries connected to this vulnerability are available at 2474, 2490, 2568 and 2570.






  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
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Class: Improper authentication
CWE: CWE-287
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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Nessus ID: 28858
Nessus Name: AIX 5.3 TL 5 / 5.3 TL 6 : (U810439)
Nessus File: 🔍
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Nessus Port: 🔍

Threat Intelligenceinfo

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Recommended: Patch
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0-Day Time: 🔍



08/01/2004 🔍
01/26/2007 +908 days 🔍
01/26/2007 +0 days 🔍
01/29/2007 +3 days 🔍
01/29/2007 +0 days 🔍
01/29/2007 +0 days 🔍
01/29/2007 +0 days 🔍
01/30/2007 +0 days 🔍
01/30/2007 +0 days 🔍
01/31/2007 +1 days 🔍
12/03/2007 +306 days 🔍
03/15/2021 +4851 days 🔍



Organization: IBM
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-0618 (🔍)
X-Force: 31875 - IBM AIX Mail Services rlogin security bypass, Medium Risk
Vulnerability Center: 14177 - IBM AIX Mail Services Authentication Bypass, Medium
SecurityFocus: 22262 - IBM AIX Pop3D/Pop3DS/IMapD/IMapDS Authentication Bypass Vulnerability
Secunia: 23957 - IBM AIX Mail Services Authentication Vulnerability, Moderately Critical
OSVDB: 41172 - IBM AIX Multiple Mail Services Unspecified Authentication Issue
Vupen: ADV-2007-0382

See also: 🔍


Created: 01/30/2007 10:31 AM
Updated: 03/15/2021 08:26 AM
Changes: 01/30/2007 10:31 AM (82), 01/13/2018 11:01 PM (9), 03/15/2021 08:26 AM (3)
Complete: 🔍


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