3Com IntelliJack Switch NJ220 loopback denial of service
| intellijack-nj220-loopback-dos (35172) |  Low Risk |
Description:
The 3Com IntelliJack Switch NJ220 is vulnerable to a denial of service. By sending a specially-crafted loopback packet with a length field value of zero, a remote attacker could exploit this vulnerability to stop or restart sending packets to the Central Configuration Manager utility.
Platforms Affected:
- 3Com, IntelliJack Switch NJ220 2.0.22
Remedy:
Upgrade to the latest version of 3Com IntelliJack Switch NJ220 (2.0.23 or later), available from the 3Com IntelliJack Switch NJ220 Web site. See References.
Consequences:
Denial of Service
References:
- 3Com IntelliJack Switch NJ220 Web site, 3Com® IntelliJack® Switch NJ220 Features & Benefits at http://www.3com.com/products/en_US/detail.jsp?tab=features&pathtype=purchase&sku=WEBBNCNJ220SYS.
- 3Com nj220_02_00_23 readme, 3Com IntelliJack Switch NJ220 Release Notes at http://support.3com.com/infodeli/tools/nj/nj220_02_00_23_readme.pdf.
- BID-24705: 3Com IntelliJack Switch NJ220 Loopback Remote Denial of Service Vulnerability
- CVE-2007-3533: The 3Com IntelliJack Switch NJ220 before 2.0.23 allows remote attackers to cause a denial of service (reboot and reporting outage) via a loopback packet with zero in the length field.
- FrSIRT/ADV-2007-2386: 3Com IntelliJack Switch NJ220 Loopback Packet Handling Denial of Service Issue
- SA25883: 3Com IntelliJack Switch NJ220 Loopback Packet Processing Denial of Service
Reported:
Jun 29, 2007
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