Mozilla Firefox 36 on Android PRNG DNS Poisoning information disclosure

CVSS Meta Temp Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox 36 on Android. It has been classified as problematic. Affected is an unknown function of the component PRNG. The manipulation leads to information disclosure (DNS Poisoning). This vulnerability is listed as CVE-2015-0800. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Mozilla Firefox 36 on Android (Web Browser). This issue affects an unknown code block of the component PRNG. The manipulation with an unknown input leads to a information disclosure vulnerability (DNS Poisoning). Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is availability.

The weakness was presented 03/31/2015 by Daniel Stenberg as MFSA 2015-41 as confirmed security advisory (Website). The advisory is shared at mozilla.org. The identification of this vulnerability is CVE-2015-0800 since 01/07/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue. The advisory points out:

Mozilla developer Daniel Stenberg reported that the DNS resolver in Firefox for Android uses an insufficiently random algorithm when generating random numbers for the unique identifier. This was derived from an old version of the Bionic libc library and suffered from insufficient randomness in the pseudo-random number generator (PRNG) as described by Roee Hay and Roi Saltzman. This leaves Firefox on Android potentially vulnerable to DNS poisoning attacks because an attacker may be able to predict the identifier used, allowing for the spoofing of web sites and cookie theft.

The vulnerability scanner Nessus provides a plugin with the ID 82482 (FreeBSD : mozilla -- multiple vulnerabilities (d0c97697-df2c-4b8b-bff2-cec24dc35af8)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123496 (Mozilla Firefox / Thunderbird Multiple Vulnerabilities (MFSA 2015-30 to MFSA 2015-42)).

Upgrading to version 37 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (102016), Tenable (82482), SecurityFocus (BID 73459†), SecurityTracker (ID 1031996†) and Vulnerability Center (SBV-49312†). bugzilla.mozilla.org is providing further details. See VDB-7070, VDB-74499, VDB-74500 and VDB-74501 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Name: DNS Poisoning
Class: Information disclosure / DNS Poisoning
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 82482
Nessus Name: FreeBSD : mozilla -- multiple vulnerabilities (d0c97697-df2c-4b8b-bff2-cec24dc35af8)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Firefox 37

Timelineinfo

01/07/2015 🔍
03/31/2015 +83 days 🔍
03/31/2015 +0 days 🔍
03/31/2015 +0 days 🔍
03/31/2015 +0 days 🔍
04/01/2015 +1 days 🔍
04/01/2015 +0 days 🔍
04/01/2015 +0 days 🔍
04/02/2015 +1 days 🔍
05/02/2022 +2587 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2015-41
Researcher: Daniel Stenberg
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-0800 (🔍)
GCVE (CVE): GCVE-0-2015-0800
GCVE (VulDB): GCVE-100-74513
X-Force: 102016 - Mozilla Firefox for Android PRNG spoofing
SecurityFocus: 73459 - Mozilla Firefox for Android CVE-2015-0800 Predictable Random Number Generator Weakness
SecurityTracker: 1031996 - Mozilla Firefox Bugs Let Remote Users Execute Arbitrary Code, Bypass Security Restrictions, and Obtain Potentially Sensitive Information
Vulnerability Center: 49312 - Mozilla Firefox <37 on Android Remote Spoofing due to Improper Random Numbers Generation, Medium

scip Labs: https://www.scip.ch/en/?labs.20130704
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 04/01/2015 13:19
Updated: 05/02/2022 09:11
Changes: 04/01/2015 13:19 (79), 06/24/2017 09:35 (4), 05/02/2022 09:10 (3), 05/02/2022 09:11 (1)
Complete: 🔍
Cache ID: 216:CD8:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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