CVE-2013-7372

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función engineNextBytes en classlib/modules/security/src/main/java/common/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.java en la implementación SecureRandom en Apache Harmony hasta 6.0M3, utilizado en Java Cryptography Architecture (JCA) en Android anterior a 4.4 y otros productos, cuando el usuario no proporciona una semilla, la función usa utiliza un valor de desplazamiento incorrecto, lo que facilita a un atacante poder anular los mecanismos de protección criptográfica mediante el aprovechamiento de la previsibilidad PRNG resultante, tal y como se demostró activamente contra las aplicaciones Bitcoin Wallet en agosto 2013.

*Credits: N/A

CVSS Scores

NISTv2 5.0

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-04-29 CVE Reserved
2014-04-29 CVE Published
2024-09-17 CVE Updated
2024-09-17 EPSS Updated
2024-09-17 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-310: Cryptographic Issues

CAPEC

References (4)

URL	Tag	Source
https://bitcoin.org/en/alert/2013-08-11-android	X_refsource_misc

URL	Date	SRC
http://www.nds.rub.de/media/nds/veroeffentlichungen/2013/03/25/paper_2.pdf	2024-09-17

URL	Date	SRC
http://android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.html	2014-04-30
https://android.googlesource.com/platform/libcore/+/kitkat-release/luni/src/main/java/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.java	2014-04-30

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Harmony Search vendor "Apache" for product "Harmony"				<= 6.0 Search vendor "Apache" for product "Harmony" and version " <= 6.0"		m3		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				<= 4.3.1 Search vendor "Google" for product "Android" and version " <= 4.3.1"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.0 Search vendor "Google" for product "Android" and version "4.0"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.0.1 Search vendor "Google" for product "Android" and version "4.0.1"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.0.2 Search vendor "Google" for product "Android" and version "4.0.2"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.0.3 Search vendor "Google" for product "Android" and version "4.0.3"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.0.4 Search vendor "Google" for product "Android" and version "4.0.4"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.1 Search vendor "Google" for product "Android" and version "4.1"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.1.2 Search vendor "Google" for product "Android" and version "4.1.2"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.2 Search vendor "Google" for product "Android" and version "4.2"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.2.1 Search vendor "Google" for product "Android" and version "4.2.1"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.2.2 Search vendor "Google" for product "Android" and version "4.2.2"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				4.3 Search vendor "Google" for product "Android" and version "4.3"		-		Affected