OpenBSD 2.9/3.0 Message /usr/bin/mail privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in OpenBSD 2.9/3.0. This vulnerability affects unknown code of the file /usr/bin/mail of the component Message Handler. Such manipulation with the input ~ leads to privileges management. This vulnerability is uniquely identified as CVE-2002-0542. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as critical, has been found in OpenBSD 2.9/3.0 (Operating System). Affected by this issue is an unknown functionality of the file /usr/bin/mail of the component Message Handler. The manipulation with the input value ~ 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. CVE summarizes:

mail in OpenBSD 2.9 and 3.0 processes a tilde (~) escape character in a message even when it is not in interactive mode, which could allow local users to gain root privileges via calls to mail in cron.

The bug was discovered 04/08/2002. The weakness was disclosed 04/12/2002 by Milos Urbanek with OpenBSD (Website). The advisory is available at online.securityfocus.com. This vulnerability is handled as CVE-2002-0542. The exploitation is known to be easy. Local access is required to approach this attack. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

A public exploit has been developed in ANSI C and been published even before and not after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $5k-$25k.

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 databases at X-Force (8818), Exploit-DB (21373), SecurityFocus (BID 4495†) and OSVDB (5269†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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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: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/08/2002 🔍
04/11/2002 +3 days 🔍
04/11/2002 +0 days 🔍
04/12/2002 +0 days 🔍
07/03/2002 +82 days 🔍
04/09/2004 +645 days 🔍
07/11/2014 +3745 days 🔍
12/30/2024 +3825 days 🔍

Sourcesinfo

Advisory: online.securityfocus.com⛔
Researcher: Milos Urbanek
Organization: OpenBSD
Status: Not defined
Confirmation: 🔍

CVE: CVE-2002-0542 (🔍)
GCVE (CVE): GCVE-0-2002-0542
GCVE (VulDB): GCVE-100-18362
X-Force: 8818
SecurityFocus: 4495 - OpenBSD Default Crontab root Compromise Vulnerability
OSVDB: 5269 - OpenBSD mail Escape Character Privilege Escalation

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

Entryinfo

Created: 07/11/2014 14:19
Updated: 12/30/2024 17:59
Changes: 07/11/2014 14:19 (56), 06/07/2018 09:02 (9), 12/30/2024 17:59 (21)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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