Ethereal capture.c function could allow an attacker to gain root access
| ethereal-dev-capturec-root (3334) |  High Risk |
Description:
Ethereal could allow an attacker to create a link to the /etc/passwd file. The capture.c function calls a tempnam to create a temporary name for the capture file. The tempnam then calls the pcap_dump file or some other routine to open the file. The pcap_dump file is not opened with 0_EXCL, which allows an attacker to create a link to /etc/passed with the correct pattern to gain root access.
Consequences:
Gain Access
Remedy:
No remedy available as of June 1, 2013.
References:
- Ethereal Mailing List, Fri, 30 Jul 1999 11:32:21 -0500: [ethereal-dev] Security race in ethereal leading to root access.
- CVE-1999-1227: Ethereal allows local users to overwrite arbitrary files via a symlink attack on the packet capture file.
- OSVDB ID: 4485: Ethereal Packet Capture Symlink Arbitrary File Overwrite
Platforms Affected:
- Unix Unix
Reported:
Jul 30, 1999
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