OpenBSD 3.0 YP auth_approval memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.3$5k-$25k0.00

Summaryinfo

A vulnerability identified as critical has been detected in OpenBSD 3.0. The impacted element is the function auth_approval of the component YP. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2002-0557. No exploit exists.

Detailsinfo

A vulnerability was found in OpenBSD 3.0 (Operating System). It has been rated as critical. This issue affects the function auth_approval of the component YP. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Vulnerability in OpenBSD 3.0, when using YP with netgroups in the password database, causes (1) rexec or (2) rsh to run another user s shell, or (3) atrun to change to a different user s directory, possibly due to memory allocation failures or an incorrect call to auth_approval().

The weakness was disclosed 07/03/2002 with OpenBSD (Website). The advisory is shared at openbsd.org. The identification of this vulnerability is CVE-2002-0557. 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 known, but no exploit is 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 databases at X-Force (8625), SecurityFocus (BID 4338†) and Vulnerability Center (SBV-2743†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/19/2002 🔍
07/03/2002 +106 days 🔍
07/03/2002 +0 days 🔍
07/03/2002 +0 days 🔍
10/30/2003 +484 days 🔍
07/11/2014 +3907 days 🔍
07/11/2014 +0 days 🔍

Sourcesinfo

Advisory: openbsd.org
Organization: OpenBSD
Status: Not defined

CVE: CVE-2002-0557 (🔍)
GCVE (CVE): GCVE-0-2002-0557
GCVE (VulDB): GCVE-100-18377
X-Force: 8625
SecurityFocus: 4338 - OpenBSD rexecd, rshd, atrun BSD Authentication Implementation Error Vulnerability
Vulnerability Center: 2743 - OpenBSD 3.0 Allow Some Processes To Gain Unauthorized Privileges, High

Entryinfo

Created: 07/11/2014 14:20
Changes: 07/11/2014 14:20 (58)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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