CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.3	$0-$5k	0.00

A vulnerability was found in 3com OfficeConnect Remote 812 ADSL Router 1.1.9.4 (Router Operating System). It has been classified as critical. Affected is an unknown function. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

Buffer overflow in 3Com OfficeConnect Remote 812 ADSL Router 1.1.9.4 allows remote attackers to cause a denial of service (reboot or packet loss) via a long string containing Telnet escape characters to the Telnet port.

The bug was discovered 05/24/2004. The weakness was disclosed 05/26/2004 by Rafel Ivgi (The Insider) with iDEFENSE (Website). The advisory is shared for download at idefense.com. This vulnerability is traded as CVE-2004-0476 since 05/17/2004. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 23 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at support.3com.com.It is possible to mitigate the weakness by firewalling . The best possible mitigation is suggested to be applying a restrictive firewalling.

The vulnerability is also documented in the vulnerability database at X-Force (16257). Further details are available at heise.de. The entry 676 is pretty similar.

Productinfo

Type

• Router Operating System

Vendor

• 3com

Name

• OfficeConnect Remote 812 ADSL Router

Version

• 1.1.9.4

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Upgrade: OfficeConnect Remote 812 ADSL Router 23
Patch: support.3com.com

Timelineinfo

05/17/2004 🔍
05/24/2004 +7 days 🔍
05/26/2004 +2 days 🔍
05/26/2004 +0 days 🔍
05/26/2004 +0 days 🔍
06/01/2004 +5 days 🔍
08/18/2004 +78 days 🔍
06/28/2019 +5427 days 🔍

Sourcesinfo

Vendor: 3com.com

Advisory: idefense.com⛔
Researcher: Rafel Ivgi (The Insider)
Organization: iDEFENSE
Status: Not defined

CVE: CVE-2004-0476 (🔍)
X-Force: 16257 - 3Com OfficeConnect Telnet escape sequence buffer overflow, Low Risk
SecuriTeam: securiteam.com
SecurityFocus: 10419 - 3Com OfficeConnect Remote 812 ADSL Router Telnet Buffer Overflow Vulnerability
Secunia: 11716 - 3Com OfficeConnect 812 ADSL Router Multiple Vulnerabilities, Moderately Critical
OSVDB: 6424 - 3Com OfficeConnect 812 ADSL Router Telnet Protocol DoS

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 06/01/2004 12:03
Updated: 06/28/2019 14:22
Changes: 06/01/2004 12:03 (78), 06/28/2019 14:22 (2)
Complete: 🔍

Discussion

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