SSH/OpenSSH scp Server path traversal

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in SSH and OpenSSH. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component scp Server. Performing a manipulation results in path traversal. This vulnerability was named CVE-2000-0992. In addition, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in SSH and OpenSSH (SSH Server Software). This affects an unknown code block of the component scp Server. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product 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 product 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 integrity. The summary by CVE is:

Directory traversal vulnerability in scp in sshd 1.2.xx allows a remote malicious scp server to overwrite arbitrary files via a .. (dot dot) attack.

The weakness was presented 12/19/2000 by Michal Zalewski as not defined posting (Bugtraq). It is possible to read the advisory at archives.neohapsis.com. This vulnerability is uniquely identified as CVE-2000-0992. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 11339 (sshd scp Traversal Arbitrary File Overwrite), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gain a shell remotely and running in the context r.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5312), Exploit-DB (20253), Tenable (11339), SecurityFocus (BID 1742†) and Vulnerability Center (SBV-1379†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • OpenSSH 1.2/1.2.3
  • Helsinki University of Technology SSH up to 1.2.27

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 11339
Nessus Name: sshd scp Traversal Arbitrary File Overwrite
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 11339
OpenVAS Name: scp File Create/Overwrite
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/30/2000 🔍
12/19/2000 +80 days 🔍
12/19/2000 +0 days 🔍
12/19/2000 +0 days 🔍
03/10/2003 +811 days 🔍
07/03/2003 +115 days 🔍
07/02/2014 +4017 days 🔍
12/17/2024 +3821 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: Michal Zalewski
Status: Confirmed

CVE: CVE-2000-0992 (🔍)
GCVE (CVE): GCVE-0-2000-0992
GCVE (VulDB): GCVE-100-16203
X-Force: 5312 - scp overwrites arbitrary files
SecurityFocus: 1742 - scp File Create/Overwrite Vulnerability
Vulnerability Center: 1379 - SSH scp is Vulnerable to Directory Traversal Resulting in File Overwriting, Critical

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

Entryinfo

Created: 07/02/2014 11:23
Updated: 12/17/2024 09:33
Changes: 07/02/2014 11:23 (40), 05/10/2019 16:16 (32), 12/17/2024 09:33 (27)
Complete: 🔍
Cache ID: 216::103

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