Cisco Content Services Switch 3.0/3.1/4.0/4.0.1 path traversal

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as problematic, was found in Cisco Content Services Switch 3.0/3.1/4.0/4.0.1. This affects an unknown part. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. The summary by CVE is:

Directory traversal vulnerability in Arrowpoint (aka Cisco Content Services, or CSS) allows local unprivileged users to read arbitrary files via a .. (dot dot) attack.

The bug was discovered 01/31/2001. The weakness was presented 01/31/2001 by Ollie Whitehouse with Cisco as not defined advisory (Website). It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2001-0020. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 38065 (TFTP Server Directory Traversal Vulnerability).

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at X-Force (6031) and Vulnerability Center (SBV-4955). See 16382 and 17545 for similar entries.





  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
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Class: Path traversal
ATT&CK: T1006

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Threat Intelligenceinfo

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Recommended: Patch
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0-Day Time: 🔍


01/31/2001 🔍
01/31/2001 +0 days 🔍
01/31/2001 +0 days 🔍
01/31/2001 +0 days 🔍
02/12/2001 +12 days 🔍
02/21/2003 +739 days 🔍
08/04/2004 +529 days 🔍
07/03/2014 +3620 days 🔍
05/24/2019 +1786 days 🔍



Researcher: Ollie Whitehouse
Organization: Cisco
Status: Not defined

CVE: CVE-2001-0020 (🔍)
X-Force: 6031 - Cisco CCS command line interface could allow read access to files and directories
Vulnerability Center: 4955 - [cisco-sa-20010131-arrowpoint-cli-fs] Arrowpoint 3.0 - 4.0.1 Allows Reading Files via Dot-Dot Attack, Medium
SecurityFocus: 2331 - Cisco Content Services Switch Directory Structure File Reading Vulnerability
OSVDB: 1757 - Cisco CSS Directory Structure Information Disclosure

See also: 🔍


Created: 07/03/2014 10:32 AM
Updated: 05/24/2019 07:04 AM
Changes: 07/03/2014 10:32 AM (45), 05/24/2019 07:04 AM (23)
Complete: 🔍


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