OpenBSD 3.2/3.4/3.5 Radius login_radius security check

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in OpenBSD 3.2/3.4/3.5. This issue affects the function login_radius of the component Radius. The manipulation leads to security check. This vulnerability is documented as CVE-2004-2163. The attack can be initiated remotely. Additionally, an exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in OpenBSD 3.2/3.4/3.5 (Operating System) and classified as problematic. This issue affects the function login_radius of the component Radius. The manipulation with an unknown input leads to a security check vulnerability. Using CWE to declare the problem leads to CWE-358. The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique. Impacted is confidentiality, and integrity. The summary by CVE is:

login_radius on OpenBSD 3.2, 3.5, and possibly other versions does not verify the shared secret in a response packet from a RADIUS server, which allows remote attackers to bypass authentication by spoofing server replies.

The bug was discovered 09/21/2004. The weakness was released 09/22/2004 by Eilko Bos (Website). It is possible to read the advisory at secunia.com. The identification of this vulnerability is CVE-2004-2163 since 07/10/2005. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a exploit are known. The attack technique deployed by this issue is T1211 according to MITRE ATT&CK.

After even before and not, there has been an exploit disclosed. The exploit is available at securiteam.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.openbsd.org.

The vulnerability is also documented in the databases at X-Force (17456), SecurityFocus (BID 11227†), OSVDB (10203†), Secunia (SA12617†) and SecurityTracker (ID 1011377†). Entry connected to this vulnerability is available at VDB-1413. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
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: Security check
CWE: CWE-358
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ftp.openbsd.org

Timelineinfo

09/21/2004 🔍
09/21/2004 +0 days 🔍
09/21/2004 +0 days 🔍
09/21/2004 +0 days 🔍
09/21/2004 +0 days 🔍
09/22/2004 +1 days 🔍
09/22/2004 +0 days 🔍
09/22/2004 +0 days 🔍
09/27/2004 +4 days 🔍
12/31/2004 +95 days 🔍
07/10/2005 +191 days 🔍
12/03/2008 +1242 days 🔍
06/29/2019 +3860 days 🔍

Sourcesinfo

Advisory: secunia.com⛔
Researcher: Eilko Bos
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2004-2163 (🔍)
GCVE (CVE): GCVE-0-2004-2163
GCVE (VulDB): GCVE-100-851
X-Force: 17456 - OpenBSD bypass radius authentication, Medium Risk
SecurityFocus: 11227 - OpenBSD Radius Authentication Bypass Vulnerability
Secunia: 12617 - OpenBSD Radius Authentication "login_radius" Security Bypass, Less Critical
OSVDB: 10203 - OpenBSD Radius Authentication UDP Spoofing Bypass
SecurityTracker: 1011377
SecuriTeam: securiteam.com
Vulnerability Center: 20122 - OpenBSD 3.2 and 3.5 login_radius Remote Authentication Bypass Vulnerability, High

See also: 🔍

Entryinfo

Created: 09/27/2004 11:46
Updated: 06/29/2019 11:44
Changes: 09/27/2004 11:46 (82), 06/29/2019 11:44 (7)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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