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CVE-2003-0466

Status Candidate

Overview

Off-by-one error in the fb_realpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary code, as demonstrated in wu-ftpd 2.5.0 through 2.6.2 via commands that cause pathnames of length MAXPATHLEN+1 to trigger a buffer overflow, including (1) STOR, (2) RETR, (3) APPE, (4) DELE, (5) MKD, (6) RMD, (7) STOU, or (8) RNTO.

Related Files

isec-0011-wu-ftpd.txt
Posted Aug 5, 2003
Authored by Wojciech Purczynski, Janusz Niewiadomski

wu-ftpd versions 2.5.0 to 2.6.2 have been found to be susceptible to an off-by-one bug in fb_realpath(). A local or remote attacker could exploit this vulnerability to gain root privileges on a vulnerable system.

tags | advisory, remote, local, root
advisories | CVE-2003-0466
SHA-256 | 26d10c27b7202a5cb1389a5a1f1668d76a81ead7b06f38bae80956501c6824ce
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