CVE-2013-7372 Weak cryptography in n/a
Attackers can predict random numbers due to a flawed PRNG implementation, compromising cryptographic security in applications like Bitcoin wallets.
- 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-2013-7372?
CVE-2013-7372 is a medium-severity vulnerability in Google Android, published on 29 Apr 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The engineNextBytes function in classlib/modules/security/src/main/java/common/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.java in the SecureRandom implementation in Apache Harmony through 6.0M3, as used in the Java Cryptography Architecture (JCA) in Android before 4.4 and other products, when no seed is provided by the user, uses an incorrect offset value, which makes it easier for attackers to defeat cryptographic protection mechanisms by leveraging the resulting PRNG predictability, as exploited in the wild against Bitcoin wallet applications in August 2013.
Weakness: CWE-310
Which versions are affected by CVE-2013-7372?
It affects 2 products.
Products include Apache Harmony, Google Android.
How do I fix CVE-2013-7372?
No fix has been published for CVE-2013-7372 yet. Limit exposure of the affected software until one is available.
Is CVE-2013-7372 being exploited?
There is no known exploitation of CVE-2013-7372 in the wild and no public exploit code.
Sources
Also known as GHSA-fgwm-j3p8-w23c.