National Vulnerability Database (NVD) National Vulnerability Database (CVE-2008-1891)

Mission and Overview

NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).

Resource Status

NVD contains:

CVE Vulnerabilities: 38426
Checklists: 128
US-CERT Alerts: 179
US-CERT Vuln Notes: 2345
OVAL Queries: 2517
CPE Names: 17819

Last updated: Tue Aug 25 10:45:06 EDT 2009

CVE Publication rate: 17.23

Email List

NVD provides four mailing lists to the public. For information and subscription instructions please visit NVD Mailing Lists

Workload Index

Vulnerability Workload Index: 10.22

About Us

NVD is a product of the NIST Computer Security Division and is sponsored by the Department of Homeland Security's National Cyber Security Division. It supports the U.S. government multi-agency (OSD, DHS, NSA, DISA, and NIST) Information Security Automation Program. It is the U.S. government content repository for the Security Content Automation Protocol (SCAP).

NIST Security Configuration Checklists - CSD

National Cyber-Alert System

Vulnerability Summary for CVE-2008-1891

Original release date:04/18/2008

Last revised:11/15/2008

Source: US-CERT/NIST

Overview

Directory traversal vulnerability in WEBrick in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2, when using NTFS or FAT filesystems, allows remote attackers to read arbitrary CGI files via a trailing (1) + (plus), (2) %2b (encoded plus), (3) . (dot), (4) %2e (encoded dot), or (5) %20 (encoded space) character in the URI, possibly related to the WEBrick::HTTPServlet::FileHandler and WEBrick::HTTPServer.new functionality and the :DocumentRoot option.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:P/I:N/A:N) (legend)

Impact Subscore: 2.9

Exploitability Subscore: 10.0

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Low

Authentication: Not required to exploit

Impact Type:Allows unauthorized disclosure of information

Vendor Statments (disclaimer)

Official Statement from Red Hat (06/10/2009): Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2008-1891 The risks associated with fixing this flaw outweigh the benefits of the fix. Red Hat does not plan to fix this flaw in Red Hat Enterprise Linux.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

External Source: FEDORA

Name: FEDORA-2008-5649

Hyperlink:https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00937.html

External Source: XF

Name: ruby-webrick-cgi-info-disclosure(41824)

Hyperlink:http://xforce.iss.net/xforce/xfdb/41824

External Source: CONFIRM

Name: http://www.ruby-lang.org/en/news/2008/06/20/arbitrary-code-execution-vulnerabilities/

Hyperlink:http://www.ruby-lang.org/en/news/2008/06/20/arbitrary-code-execution-vulnerabilities/

External Source: MANDRIVA

Name: MDVSA-2008:141

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2008:141