Ruby up to 1.9.0 Access Restriction PROGRAM_NAME access control

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Ruby up to 1.9.0. It has been declared as problematic. This affects an unknown part of the component Access Restriction. Executing a manipulation of the argument PROGRAM_NAME can lead to access control. This vulnerability is tracked as CVE-2008-3655. Moreover, an exploit is present. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Ruby up to 1.9.0 (Programming Language Software) and classified as critical. This vulnerability affects some unknown processing of the component Access Restriction. The manipulation of the argument PROGRAM_NAME with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not properly restrict access to critical variables and methods at various safe levels, which allows context-dependent attackers to bypass intended access restrictions via (1) untrace_var, (2) $PROGRAM_NAME, and (3) syslog at safe level 4, and (4) insecure methods at safe levels 1 through 3.

The bug was discovered 08/08/2008. The weakness was disclosed 08/12/2008 (Website). The advisory is shared for download at us-cert.gov. This vulnerability was named CVE-2008-3655 since 08/12/2008. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed in Ruby. It is possible to download the exploit 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 $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 34387 (Debian DSA-1651-1 : ruby1.8 - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165649 (SUSE Enterprise Linux Security Update dhcp-client (SUSE-SA:2009:037)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (44369), Exploit-DB (32224), Tenable (34387), SecurityFocus (BID 30644†) and OSVDB (47470†). The entries VDB-3810, VDB-23858, VDB-30376 and VDB-40710 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 34387
Nessus Name: Debian DSA-1651-1 : ruby1.8 - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 61773
OpenVAS Name: Debian Security Advisory DSA 1651-1 (ruby1.8)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Fortigate IPS: 🔍

Timelineinfo

08/08/2008 🔍
08/11/2008 +3 days 🔍
08/12/2008 +1 days 🔍
08/12/2008 +0 days 🔍
08/12/2008 +0 days 🔍
08/12/2008 +0 days 🔍
10/12/2008 +61 days 🔍
10/12/2008 +0 days 🔍
10/13/2008 +1 days 🔍
03/17/2015 +2346 days 🔍
02/03/2025 +3611 days 🔍

Sourcesinfo

Advisory: us-cert.gov
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-3655 (🔍)
GCVE (CVE): GCVE-0-2008-3655
GCVE (VulDB): GCVE-100-43672

OVAL: 🔍

X-Force: 44369
SecurityFocus: 30644 - Ruby Multiple Security Bypass and Denial of Service Vulnerabilities
Secunia: 31430
OSVDB: 47470 - CVE-2008-3655 - Ruby - Security Bypass Issue
SecurityTracker: 1020656
Vulnerability Center: 19677 - Ruby Safe Levels Implementation Errors Allows Remote Bypass of Access Restrictions, Medium
Vupen: ADV-2008-2334

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

Entryinfo

Created: 03/17/2015 12:19
Updated: 02/03/2025 06:49
Changes: 03/17/2015 12:19 (81), 08/18/2019 09:03 (10), 02/03/2025 06:49 (19)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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