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Secunia Advisory SA8319

Kerberos cryptographic implementation flaws
Secunia Advisory SA8319
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Release Date 2003-03-18
Last Update 2003-03-28
   
Popularity 8,780 views
Comments 0 comments

Criticality level Moderately criticalModerately critical
Impact Security Bypass
Spoofing
Exposure of system information
Where From remote
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Vendor Patch
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
   
Software:
Kerberos 4.x
Kerberos 5.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) No CVE references.
  

Description

A paper has been published detailing weaknesses and flaws with the implementation of cryptography in Kerberos V4. This also affects Kerberos V5 due to backward compatibility.

Malicious people able to perform wire tapping are able to decipher secrets and impersonate other users through exploitation of these weaknesses.

For detailed information please read the "Original Advisory".


Solution
Discontinue the use of Kerberos V4.
Further details available in Customer Area

Provided and/or discovered by
Sam Hartman, Tom Yu, Ken Raeburn

Original Advisory
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt

Deep Links
Links available in Customer Area


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Kerberos cryptographic implementation flaws
 
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