CVE-2013-7372
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…
Does this matter?
Lower severity and a low EPSS score (2.34%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
- EPSS
- 2.34% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-310
- Affected
- apache/harmony · google/android
- Source
- cve@mitre.org
References
- http://android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.htmlPatch
- http://www.nds.rub.de/media/nds/veroeffentlichungen/2013/03/25/paper_2.pdfExploit
- https://android.googlesource.com/platform/libcore/+/kitkat-release/luni/src/main/java/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.javaPatch
- https://bitcoin.org/en/alert/2013-08-11-android
- http://android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.htmlPatch
- http://www.nds.rub.de/media/nds/veroeffentlichungen/2013/03/25/paper_2.pdfExploit
- https://android.googlesource.com/platform/libcore/+/kitkat-release/luni/src/main/java/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.javaPatch
- https://bitcoin.org/en/alert/2013-08-11-android
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.