SCO Unix 4.0 passwd denial of service

HistoryDiffrelatejsonxmlCTI

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.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in SCO Unix 4.0. Affected is an unknown function of the component passwd. The manipulation leads to denial of service. This vulnerability is documented as CVE-1999-1162. There is not any exploit available.

Detailsinfo

A vulnerability was found in SCO Unix 4.0 (Operating System). It has been rated as critical. This issue affects an unknown code of the component passwd. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is integrity, and availability. The summary by CVE is:

vulnerability in passwd in sco unix 4.0 and earlier allows attackers to cause a denial of service by preventing users from being able to log into the system.

The weakness was released 05/24/1993 as CA-1993-08 as confirmed advisory (CERT.org). The advisory is shared at cert.org. The identification of this vulnerability is CVE-1999-1162. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

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 vulnerability database at X-Force (542). Entry connected to this vulnerability is available at VDB-13664. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

SCO Open Desktop 1.1/2.0
SCO Unix up to 4.0

Productinfo

Type

Operating System

Vendor

Name

Unix

Version

License

commercial

Website

Vendor: http://www.sco.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/24/1993 🔍
05/24/1993 +0 days 🔍
06/17/2014 +7694 days 🔍
04/03/2025 +3943 days 🔍

Sourcesinfo

Vendor: sco.com

Advisory: CA-1993-08
Status: Confirmed

CVE: CVE-1999-1162 (🔍)
GCVE (CVE): GCVE-0-1999-1162
GCVE (VulDB): GCVE-100-13661
X-Force: 542 - SCO Unix denies users from logging in

See also: 🔍

Entryinfo

Created: 06/17/2014 12:44
Updated: 04/03/2025 06:11
Changes: 06/17/2014 12:44 (47), 05/17/2018 09:10 (6), 04/03/2025 06:11 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.