CVE Vulnerabilities

CVE-2008-5742

Improper Link Resolution Before File Access ('Link Following')

Published: Dec 26, 2008 | Modified: Sep 29, 2017
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4 MEDIUM
AV:N/AC:H/Au:N/C:N/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

Multiple open redirect vulnerabilities in AIST NetCat 3.12 and earlier allow remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via (1) the redirect parameter in a logoff action to modules/auth/index.php or (2) the url parameter to modules/linkmanager/redirect.php. NOTE: this was reported within an HTTP Response Splitting section in the original disclosure.

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Name Vendor Start Version End Version
Netcat Netcat * 3.12 (including)
Netcat Netcat 1.1 (including) 1.1 (including)
Netcat Netcat 2.0 (including) 2.0 (including)
Netcat Netcat 2.1 (including) 2.1 (including)
Netcat Netcat 2.2 (including) 2.2 (including)
Netcat Netcat 2.3 (including) 2.3 (including)
Netcat Netcat 2.4 (including) 2.4 (including)
Netcat Netcat 3.0 (including) 3.0 (including)

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References