Information disclosure in Google, Google Android

1) Information disclosure

EUVDB-ID: #VU41738

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-7373

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Android before 4.4 does not properly arrange for seeding of the OpenSSL PRNG, which makes it easier for attackers to defeat cryptographic protection mechanisms by leveraging use of the PRNG within multiple applications.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Google Android: 1.0 - 4.3

CPE2.3

• cpe:2.3:o:google:android:1.6:*:*:*:*:*:*:*
• cpe:2.3:o:google:android:2.3.7:*:*:*:*:*:*:*
• cpe:2.3:o:google:android:3.2.6:*:*:*:*:*:*:*
• cpe:2.3:o:google:android:4.3:*:*:*:*:*:*:*

External links

http://android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.html
http://emboss.github.io/blog/2013/08/21/openssl-prng-is-not-really-fork-safe/
http://marc.info/?l=openssl-dev&m=130289811108150&w=2
http://marc.info/?l=openssl-dev&m=130298304903422&w=2
http://www.reddit.com/r/Android/comments/1k6f03/due_to_a_serious_encryptionrng_flaw_in_android/cblvum5

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.