Linksys WRT54g router security bypass
| linksys-wrt54g-security-bypass (41118) |  Medium Risk |
Description:
The Linksys WRT54g router could allow a remote attacker to bypass security restrictions, caused by the invoking of scripts without checking for valid credentials by the Web interface. By sending a direct request to multiple "tri" files, an attacker could exploit this vulnerability to gain unauthorized access to the system and perform arbitrary administrative tasks.
Platforms Affected:
- Linksys, WRT54G 1.00.9
Remedy:
For WRT54G wireless routers 5 and 6:
Upgrade to the latest firmware version of WRT54g (1.02.5 or later), available from the Linksys Web site. See References.
For WRT54G wireless router 8:
Upgrade to the latest firmware version of WRT54g (8.00.5 or later), available from the Linksys Web site. See References.
For WRT54G wireless router 8.2:
Upgrade to the latest firmware version of WRT54g (8.2.05 or later), available from the Linksys Web site. See References.
Consequences:
Bypass Security
References:
- BugTraq Mailing List, Sat Mar 01 2008 - 16:08:29 CST, The Router Hacking Challenge is Over! at http://archives.neohapsis.com/archives/bugtraq/2008-03/0006.html.
- GNUCITIZEN Blog, February 3rd, 2008, Router Hacking Challenge at http://www.gnucitizen.org/projects/router-hacking-challenge/.
- kinqpinz Advisories, Tue, 05 Feb 2008 07:51:41 -0700, WRT54G firmware version: v1.00.9 at http://kinqpinz.info/lib/wrt54g/own.txt.
- Linksys Web site, WRT54G at http://www.linksys.com/servlet/Satellite?c=L_Product_C2&childpagename=US%2FLayout&cid=1149562300349&pagename=Linksys%2FCommon%2FVisitorWrapper.
- BID-28381: Linksys WRT54G Wireless-G Router Multiple Remote Authentication Bypass Vulnerabilities
- CVE-2008-1247: The web interface on the Linksys WRT54g router with firmware 1.00.9 does not require credentials when invoking scripts, which allows remote attackers to perform arbitrary administrative actions via a direct request to (1) Advanced.tri, (2) AdvRoute.tri, (3) Basic.tri, (4) ctlog.tri, (5) ddns.tri, (6) dmz.tri, (7) factdefa.tri, (8) filter.tri, (9) fw.tri, (10) manage.tri, (11) ping.tri, (12) PortRange.tri, (13) ptrigger.tri, (14) qos.tri, (15) rstatus.tri, (16) tracert.tri, (17) vpn.tri, (18) WanMac.tri, (19) WBasic.tri, or (20) WFilter.tri. NOTE: the Security.tri vector is already covered by CVE-2006-5202.
- SA29344: Linksys WRT54G Security Bypass Vulnerability
Reported:
Mar 10, 2008
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