OpenBSD 3.0 YP auth_approval memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/11/2014).

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: 216:3A8:103

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

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