19387 : Cisco Linksys WRT54G upgrade.cgi Arbitrary Configuration Upload
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Disclosure Date
Time to Vendor Response
20 days


Linksys Wireless-G Router WRT54G contains a flaw that may allow a remote attacker to manipulate arbitrary configuration settings. The issue is triggered due to the handling of the HTTP POST method of the 'upgrade.cgi' script, which may allow a remote attacker to upload arbitrary configuration settings resulting in a loss of integrity.


Location: Remote / Network Access
Attack Type: Authentication Management
Impact: Loss of Integrity
OSVDB: Web Related


Upgrade to firmware 4.20.7 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.


Cisco Systems, Inc.
Firmware 3.01.03
Firmware 3.03.6
Firmware 4.00.7


Tools & Filters



CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2005-09-15 | Disagree?

Access_vector_2 Access_complexity_2 Authentication_2 Confidentiality_impact_0 Integrity_impact_1 Availability_impact_0


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