Title: Symantec Norton Antivirus LiveUpdate DoS Vulnerability
Severity: MODERATE
Description:
Symantec's Norton Antivirus contains a feature called LiveUpdate. LiveUpdate is a process that checks for new virus definitions over the internet, downloads and installs them from a Symantec site. This process can either be scheduled or performed manually.
A vulnerability exists in Symantec's implementation of Norton Antivirus LiveUpdate. It is possible for a remote user to cause LiveUpdate to redirect a download from a site of his/her choice. This can be accomplished by DNS poisoning, DNS impersonation etc.
Therefore, a remote host could send an unusually large file as the update, potentially causing a denial of services on the target system.
Symantec's downloaded updates contain cryptographic signatures of all update files. Thus, making a remote user incapable of executing arbitrary files on the user's system.
Affected Products:
- Symantec LiveUpdate 1.6.0
- Symantec Norton AntiVirus 2001
- Symantec Norton AntiVirus 2002
- Symantec Norton AntiVirus Corporate Edition 7.5.0
- Symantec Norton AntiVirus Corporate Edition 7.51.0
References:
- Phenoelit Group: Phenoelit Advisory <wir-haben-auch-mal-was-gefunden #0815>
- Symantec: Symantec LiveUpdate 1.4 through 1.6 vulnerability
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