A directory traversal was found in ZNC, allowing for overwriting of
arbitrary files.


Background


ZNC is an advanced IRC bouncer.


Affected Packages

Package: net-irc/znc
Vulnerable: < 0.074
Unaffected: >= 0.074
Architectures: All supported architectures


De******ion


The vendor reported a directory traversal vulnerability when processing
DCC SEND requests.


Impact


A remote, authenticated user could send a specially crafted DCC SEND
request to overwrite arbitrary files with the privileges of the user
running ZNC, and possibly cause the execution of arbitrary code e.g. by
uploading a malicious ZNC module.


Workaround


There is no known workaround at this time.


Resolution


All ZNC users should upgrade to the latest version:
Code: # emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/znc-0.074"

References

[عزيزي الزائر يتوجب عليك التسجيل لمشاهدة الرابط للتسجيل اضغط هنا]

Last edited by GLSA on Sat Nov 21, 2009 11:29 pm; edited 1 time in total