CVE-2004-0580: Medium severity linksys befsr11 vulnerability

Published Jun 23, 2004
·
Updated

DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware version 1.45.7, does not properly clear previously used buffer contents in a BOOTP reply packet, which allows remote attackers to obtain sensitive information.

Affected Software

50 affected components
LinkSys Befcmu10
LinkSys BEFN2PS4
LinkSys BEFN2PS4=1.42.7
LinkSys BEFSR11=1.40.2
LinkSys BEFSR11=1.41
LinkSys BEFSR11=1.42.3
LinkSys BEFSR11=1.42.7
LinkSys BEFSR11=1.43
LinkSys BEFSR11=1.43.3
LinkSys BEFSR11=1.44
LinkSys BEFSR41=1.35
LinkSys BEFSR41=1.36
LinkSys BEFSR41=1.37
LinkSys BEFSR41=1.38.5
LinkSys BEFSR41=1.39
LinkSys BEFSR41=1.40.2
LinkSys BEFSR41=1.41
LinkSys BEFSR41=1.42.3
LinkSys BEFSR41=1.42.7
LinkSys BEFSR41=1.43
LinkSys BEFSR41=1.43.3
LinkSys BEFSR41=1.44
LinkSys BEFSR41=1.45.7
LinkSys Befsr41w
LinkSys BEFSR81
LinkSys BEFSR81=2.42.7.1
LinkSys BEFSR81=2.44
LinkSys BEFSRU31=1.40.2
LinkSys BEFSRU31=1.41
LinkSys BEFSRU31=1.42.3
LinkSys BEFSRU31=1.42.7
LinkSys BEFSRU31=1.43
LinkSys BEFSRU31=1.43.3
LinkSys BEFSRU31=1.44
LinkSys BEFSX41=1.42.7
LinkSys BEFSX41=1.43
LinkSys BEFSX41=1.43.3
LinkSys BEFSX41=1.43.4
LinkSys BEFSX41=1.44
LinkSys BEFSX41=1.44.3
LinkSys BEFSX41=1.45.3
LinkSys BEFVP41
LinkSys BEFVP41=1.39.64
LinkSys BEFVP41=1.40.3f
LinkSys BEFVP41=1.40.4
LinkSys BEFVP41=1.42.7
LinkSys Rv082
LinkSys WAP55AG=1.0.7
LinkSys WRT54G=1.42.3
LinkSys WRT54G=2.00.8

Event History

Jun 23, 2004
CVE Published
via MITRE·08:00 AM
Data Sourced
via MITRE·08:00 AM
Description
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Frequently Asked Questions

1

What is the severity of CVE-2004-0580?

CVE-2004-0580 is classified as a medium severity vulnerability due to the risk of sensitive information disclosure.

2

How do I fix CVE-2004-0580?

To fix CVE-2004-0580, upgrade the firmware of affected Linksys routers to the latest version provided by the manufacturer.

3

Which Linksys models are affected by CVE-2004-0580?

CVE-2004-0580 affects Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 routers running firmware version 1.45.7.

4

What is the exploit scenario for CVE-2004-0580?

CVE-2004-0580 can be exploited by remote attackers sending crafted BOOTP reply packets to obtain previously used buffer contents.

5

Is there a workaround for CVE-2004-0580?

While upgrading firmware is the recommended solution for CVE-2004-0580, disabling the DHCP service can serve as a temporary workaround.

Company

Resources

Contact

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