IBM AIX 3.1/3.2 rexd Service improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in IBM AIX 3.1/3.2 (Operating System). It has been rated as problematic. This issue affects an unknown function of the component rexd Service. The manipulation with an unknown input leads to a weak authentication vulnerability. Using CWE to declare the problem leads to CWE-287. The impact remains unknown.

The issue has been introduced in 02/01/1990. The weakness was presented 03/01/1992 with CERT/CC (Website). It is possible to read the advisory at The identification of this vulnerability is CVE-1999-0627. 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 are unknown but an exploit is available.

It is declared as proof-of-concept. The exploit is available at The vulnerability was handled as a non-public zero-day exploit for at least 759 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 10224 (rexd service), which helps to determine the existence of the flaw in a target environment. It is assigned to the family RPC.

Upgrading to version 4.0 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 601.

The vulnerability is also documented in the databases at SecurityFocus (BID 37), X-Force (101), Vulnerability Center (SBV-20) and Tenable (10224). See 82, 332, 333 and 427 for similar entries.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.9
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Weak authentication
CWE: CWE-287
ATT&CK: Unknown

Local: No
Remote: Yes

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

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 10224
Nessus Name: rexd service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfoedit

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


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: AIX 4.0
TippingPoint: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍


02/01/1990 🔍
03/01/1992 +759 days 🔍
03/01/1992 +0 days 🔍
03/01/1992 +0 days 🔍
03/05/1992 +4 days 🔍
10/08/2002 +3869 days 🔍
04/09/2004 +548 days 🔍
06/16/2014 +3720 days 🔍
04/18/2016 +672 days 🔍
01/14/2018 +636 days 🔍



Organization: CERT/CC
Status: Not defined

CVE: CVE-1999-0627 (🔍)
SecurityFocus: 37 - AIX rexd Vulnerability
X-Force: 101
Vulnerability Center: 20 - rexd RPC Service Weak Authentication, Medium
OSVDB: 11450 - rexd Service Authentication Bypass Remote Command Execution

See also: 🔍


Created: 06/16/2014 03:30 PM
Updated: 01/14/2018 10:25 AM
Changes: (14) vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai advisory_url advisory_company_name exploit_url source_osvdb_create source_securityfocus source_securityfocus_date source_securityfocus_class source_tippingpoint_id
Complete: 🔍


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