Red Hat Bugzilla – Bug 253165
CVE-2007-4044 'c' character missing from shell metacharacter whitelist
Last modified: 2007-08-17 09:10:07 EDT
Common Vulnerabilities and Exposures assigned an identifier CVE-2007-4044
to the following vulnerability:
Incomplete blacklist vulnerability in the MS-RPC functionality in smbd in Samba 3 on SUSE Linux before 20070720 allows remote attackers to execute arbitrary commands via shell metacharacters in unspecified vectors, due to an incomplete fix for CVE-2007-2447 that
missed one character in the shell escape handling.
The CVE description is wrong. This does not have any security implications, it
only causes 'c' characters passed to shell to be escaped.
This is NOT a security problem (and not even a "bug"), we have already
identified this problem months ago and verified it is only a cosmetic problem.
We were not able to find out any way to misuse or any secondary effect of
escaping the "c" character as the shell will happily expand it before running