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.
*CVSS:
| Base Score: | 7.5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 6.2 |
| Exploitability: | Functional |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Bypass Security
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.
References:
- BugTraq Mailing List, Sat Mar 01 2008 - 16:08:29 CST: The Router Hacking Challenge is Over!.
- GNUCITIZEN Blog, February 3rd, 2008: Router Hacking Challenge.
- kinqpinz Advisories, Tue, 05 Feb 2008 07:51:41 -0700: WRT54G firmware version: v1.00.9.
- Linksys Web site: WRT54G.
- 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
Platforms Affected:
- Linksys WRT54G 1.00.9
Reported:
Mar 10, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.