IBM AIX 3.2/4.1 rpc.ypupdated privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability, which was classified as critical, was found in IBM AIX 3.2/4.1 (Operating System). This affects some unknown processing of the component rpc.ypupdated. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-269. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 12/01/1995. The weakness was shared 12/12/1995 (Website). It is possible to read the advisory at This vulnerability is uniquely identified as CVE-1999-0208. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

After before and not just, there has been an exploit disclosed. It is declared as proof-of-concept. The exploit is shared for download at The vulnerability was handled as a non-public zero-day exploit for at least 1441 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 31683 (Multiple Vendor NIS rpc.ypupdated YP Map Update Arbitrary Remote Command Execution), which helps to determine the existence of the flaw in a target environment. It is assigned to the family RPC and running in the context remote.

Upgrading eliminates this vulnerability. Attack attempts may be identified with Snort ID 591. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 6023.

The vulnerability is also documented in the databases at SecurityFocus (BID 1749), X-Force (110), Vulnerability Center (SBV-20164) and Tenable (31683).


  • IBM AIX 3.2/4.1
  • SGI IRIX up to 5.2





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
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Class: Privilege escalation
CWE: CWE-269
ATT&CK: Unknown

Local: No
Remote: Yes

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

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 31683
Nessus Name: Multiple Vendor NIS rpc.ypupdated YP Map Update Arbitrary Remote Command Execution
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 80036
OpenVAS Name: strcat(|sleep , sleep, true > /dev/null
OpenVAS File: 🔍
OpenVAS Family: 🔍

Saint ID: exploit_info/ypupdated
Saint Name: rpc.ypupdated command injection vulnerability

Threat Intelligenceinfoedit

Threat: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Snort ID: 591
Snort Message: PROTOCOL-RPC portmap ypupdated request TCP
Snort Class: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍


01/01/1992 🔍
12/19/1994 +1083 days 🔍
12/01/1995 +347 days 🔍
12/12/1995 +11 days 🔍
12/12/1995 +0 days 🔍
12/19/1995 +7 days 🔍
04/09/2004 +3033 days 🔍
03/28/2008 +1449 days 🔍
06/02/2008 +66 days 🔍
12/08/2008 +189 days 🔍
06/17/2014 +2017 days 🔍
05/13/2018 +1426 days 🔍
08/21/2019 +465 days 🔍



Status: Not defined

CVE: CVE-1999-0208 (🔍)
SecurityFocus: 1749 - Multiple Vendor RPC.YPUpdated Command Execution Vulnerability
X-Force: 110
Vulnerability Center: 20164 - rpc.ypupdated cmd exec, High
OSVDB: 11517 - Multiple Vendor NIS rpc.ypupdated YP Map Update Arbitrary Remote Command Execution

scip Labs:


Created: 06/17/2014 04:46 PM
Updated: 08/21/2019 04:18 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍


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