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CVE-2009-3962: 2wire Gateway models can be forced to reboot remotely

CVE-2009-3962 · published 16 years ago

Summary

The 2wire 1700HG, 1701HG, 1800HW, 2071, 2700HG and 2701HG‑T routers with firmware older than version 5.29.52 can be made to restart by a remote user sending a specially crafted request. This causes a temporary loss of network service. Update the router to the latest firmware (or at least version 5.29.52) to stop the reboot problem.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
2wire	1700hg	<= 5.29.51 `cpe:2.3:h:2wire:1700hg::::::::`
2wire	1701hg	<= 5.29.51 `cpe:2.3:h:2wire:1701hg::::::::`
2wire	1800hw	<= 5.29.51 `cpe:2.3:h:2wire:1800hw::::::::`
2wire	2071	<= 5.29.51 `cpe:2.3:h:2wire:2071::::::::`
2wire	2700hg	<= 5.29.51 `cpe:2.3:h:2wire:2700hg::::::::`
2wire	2701hg-t	<= 5.29.51 `cpe:2.3:h:2wire:2701hg-t::::::::`

Original advisory text

The management interface on the 2wire Gateway 1700HG, 1701HG, 1800HW, 2071, 2700HG, and 2701HG-T with software before 5.29.52 allows remote attackers to cause a denial of service (reboot) via a %0d%0a sequence in the page parameter to the xslt program on TCP port 50001, a related issue to CVE-2006-4523.

References

http://webvuln.com/advisories/2wire.remote.denial.of.service.txt Exploit
http://www.securityfocus.com/archive/1/507587/100/0/threaded
http://www.securitytracker.com/id?1023116 Exploit
http://www.vupen.com/english/advisories/2009/3110 Vendor Advisory

Fix within

Internet-facing 14 days

Internal 60 days

Not known to be exploited
Can be exploited automatically (estimated)
Gives an attacker partial control (estimated)

Severity

7.8 High

Exploitation

3% chance of attack within 30 days

Type

CWE-20Improper Input Validation

Timeline

Published17 Nov 2009

Updated30 Oct 2026

First seen29 Sep 2026

Sources

CVE-2009-3962 · NVD

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