NCSA Webserver 1.5 phf privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.4$0-$5k0.00

Summaryinfo

A vulnerability was found in NCSA Webserver 1.5. It has been rated as critical. Affected is an unknown function of the component phf Handler. The manipulation leads to privileges management. This vulnerability is uniquely identified as CVE-1999-0067. Moreover, an exploit is present. Due to its background and reception, this vulnerability has an historic impact. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in NCSA Webserver 1.5 (Web Server). This issue affects an unknown function of the component phf Handler. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

phf cgi program allows remote command execution through shell metacharacters.

The weakness was disclosed 03/20/1996 by r00t with IBM ERS Team (Website). It is possible to read the advisory at cert.org. The vendor was not involved in the public release. The identification of this vulnerability is CVE-1999-0067. 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 a public exploit is available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/28/2025). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. Due to its background and reception, this vulnerability has a historic impact.

After even before and not, there has been an exploit disclosed. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 79 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 10176 (Multiple Vendor phf CGI Arbitrary Command Execution), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10000 (phf CGI Vulnerability).

Upgrading eliminates this vulnerability. Attack attempts may be identified with Snort ID 886. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1334.

The vulnerability is also documented in the databases at X-Force (148), Tenable (10176), SecurityFocus (BID 629†), OSVDB (136†) and Vulnerability Center (SBV-203†). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Apache httpd 1.0.3

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10176
Nessus Name: Multiple Vendor phf CGI Arbitrary Command Execution
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Snort ID: 886
Snort Message: SERVER-WEBAPP phf access
Snort Class: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

01/01/1996 🔍
03/20/1996 +79 days 🔍
03/20/1996 +0 days 🔍
03/20/1996 +0 days 🔍
03/20/1996 +0 days 🔍
06/22/1999 +1189 days 🔍
09/12/2002 +1178 days 🔍
10/23/2002 +40 days 🔍
06/17/2014 +4255 days 🔍
10/28/2025 +4151 days 🔍

Sourcesinfo

Advisory: cert.org
Researcher: r00t
Organization: IBM ERS Team
Status: Confirmed

CVE: CVE-1999-0067 (🔍)
GCVE (CVE): GCVE-0-1999-0067
GCVE (VulDB): GCVE-100-13727
X-Force: 148
SecurityFocus: 629 - phf Remote Command Execution Vulnerability
OSVDB: 136 - Multiple Vendor phf CGI Arbitrary Command Execution
Vulnerability Center: 203 - VGI phf cmd exec, High

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

Entryinfo

Created: 06/17/2014 16:56
Updated: 10/28/2025 02:43
Changes: 06/17/2014 16:56 (83), 05/05/2019 15:16 (3), 04/03/2025 12:42 (18), 10/28/2025 02:43 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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