CVE-2016-8217 Information disclosure in RSA BSAFE Crypto-J RSA BSAFE Crypto-J versions prior to 6.2.2
An attacker can guess PKCS#12 MAC bytes via timing attacks due to non-constant-time comparisons, potentially exposing integrity checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-8217?
CVE-2016-8217 is a low-severity vulnerability in RSA BSAFE Crypto-J RSA BSAFE Crypto-J versions prior to 6.2.2, published on 3 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
EMC RSA BSAFE Crypto-J versions prior to 6.2.2 has a PKCS#12 Timing Attack Vulnerability. A possible timing attack could be carried out by modifying a PKCS#12 file that has an integrity MAC for which the password is not known. An attacker could then feed the modified PKCS#12 file to the toolkit and guess the current MAC one byte at a time. This is possible because Crypto-J uses a non-constant-time method to compare the stored MAC with the calculated MAC. This vulnerability is similar to the issue described in CVE-2015-2601.
Weakness: CWE-200
Which versions are affected by CVE-2016-8217?
It affects 1 product.
Products include Dell Bsafe Crypto-J.
How do I fix CVE-2016-8217?
No fix has been published for CVE-2016-8217 yet. Limit exposure of the affected software until one is available.
Is CVE-2016-8217 being exploited?
There is no known exploitation of CVE-2016-8217 in the wild and no public exploit code.
Other vulnerabilities in RSA BSAFE Crypto-J RSA BSAFE Crypto-J versions prior to 6.2.2
Sources
Also known as GHSA-34fw-m7m3-5c57.