VULHUB ™

Mandriva Linux Security Advisory - Hugo Vazquez Carames discovered a race condition when writing output files in wget. After wget determined the output file name, but before the file was actually opened, a local attacker with write permissions to the download directory could create a symbolic link with the name of the output file. This could be exploited to overwrite arbitrary files with the permissions of the user invoking wget. The time window of opportunity for the attacker is determined solely by the delay of the first received data packet.

Mandriva Linux Security Advisory - Hugo Vazquez Carames discovered a race condition when writing output files in wget. After wget determined the output file name, but before the file was actually opened, a local attacker with write permissions to the download directory could create a symbolic link with the name of the output file. This could be exploited to overwrite arbitrary files with the permissions of the user invoking wget. The time window of opportunity for the attacker is determined solely by the delay of the first received data packet.