Norton AntiVirus Denial Of Service Vulnerability

vendor:

Norton AntiVirus

by:

Bipin Gautam

5.5

CVSS

MEDIUM

Denial of Service

CWE

Product Name: Norton AntiVirus

Affected Version From: Symantec Norton AntiVirus 2003 Professional Edition

Affected Version To: Symantec Norton AntiVirus 2002

Patch Exists: NO

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested:

2004

Norton AntiVirus Denial Of Service Vulnerability

While scanning specially crafted compressed files, Norton AntiVirus triggers a Denial of Service (DoS) attack by using 100% CPU for a long time. The scan cannot be stopped manually, forcing the user to kill the process. A proof of concept file is provided to demonstrate the vulnerability. Other antivirus or trojan scanners may also be vulnerable.

Mitigation:

No mitigation or remediation information provided

Source

Exploit-DB raw data:

Norton AntiVirus Denial Of Service Vulnerability

*vulnerable [...only tested on!]

Symantec Norton AntiVirus 2003 Professional Edition
Symantec Norton AntiVirus 2002

*not vulnerable
Mcafee 7*
Mcafee 8*

Risk Impact: Medium
Remote: yes

Description:
While having a virus scan [automatic/manual] of some specially crafted compressed files; NAV triggers a DoS using 100% CPU for a very long time. Morover, NAV is unable to stop the scan in middle, even if the user wishes to manually stop the virus scan. 

Then, in this situation the only alternate is to kill the process. 

--- [Proof of Concept] ---
Please download this file.

https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/312.zip (av_bomb_3.zip) <--- For symantec. 

The file contains, 'EICAR Test String' burried in 49647 directories. This is just a RAW 'proof of concept'. A few 100kb's of compressed file could be crafted in a way... NAV will take hours or MIGHT even days to complete the scan causing 100% cup use in email gateways for hours. The compressed archive must not necessarily be a '.zip' to trigger this attack.

PLEASE: ...test this issue with other AV / trojan scanners as they might also be vulnerable. 

-----------
Bipin Gautam
http://www.geocities.com/visitbipin/

Disclaimer: The information in the advisory is believed to be accurate at the time of printing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect or consequential loss or damage arising from use of, or reliance on this information. 


# milw0rm.com [2004-07-12]