TLS compression in Symantec Encryption Management Server (formerly PGP Universal Server) vulnerable to CRIME attack

Article:TECH199034  |  Created: 2012-10-26  |  Updated: 2013-05-13  |  Article URL
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Technical Solution


The TLS protocol 1.2 and earlier, as used in Mozilla Firefox, Google Chrome, and other products, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which allows man-in-the-middle attackers to obtain plaintext HTTP headers by observing length differences during a series of guesses in which a string in an HTTP request potentially matches an unknown string in an HTTP header, aka a "CRIME" attack.


Currently there is a workaround for this vulnerability in Symantec Encryption Management Server, this requires SSH access, and will modify core System Files, please contact Technical Support for assistance.

Symantec Engineering is evaluating the vulnerability and will address it in a future release.

Supplemental Materials


Etrack incident to address CVE-2012-4929

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