Mozilla Firefox up to 47 Form Input Type Password information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Mozilla Firefox up to 47. The affected element is an unknown function of the component Form Input Type Handler. The manipulation of the argument Password leads to information disclosure. This vulnerability is uniquely identified as CVE-2016-5260. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 47 (Web Browser) and classified as problematic. This issue affects an unknown code of the component Form Input Type Handler. The manipulation of the argument Password with an unknown input leads to a information disclosure vulnerability. 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 confidentiality. The summary by CVE is:

Mozilla Firefox before 48.0 mishandles changes from INPUT type="password" to INPUT type="text" within a single Session Manager session, which might allow attackers to discover cleartext passwords by reading a session restoration file.

The weakness was disclosed 08/02/2016 by Mike Kaply (musicDespiteEverything) as MFSA 2016-74 as confirmed security advisory (Website). The advisory is shared at mozilla.org. The identification of this vulnerability is CVE-2016-5260 since 06/03/2016. An attack has to be approached locally. A simple authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1592 for this issue. The advisory points out:

Mozilla employee Mike Kaply reported that the Firefox session restore data can contain passwords in plain text if a password input field on a page has its type changed from "password" to "text" during a session. This can occur if the password input field has a scripted mechanism to display the password to the user. Once this type is changed, the password data will persist as clear text within stored form data for this page. This could result in a potential revelation of site passwords on sites that use this mechanism to display password data if an attacker could find a way to read the session restoration file.

It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 92785 (Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : firefox vulnerabilities (USN-3044-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196543 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-3044-1)).

Upgrading to version 48 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 Tenable (92785), SecurityFocus (BID 92260†) and SecurityTracker (ID 1036508†). The entries VDB-90424, VDB-90425, VDB-90426 and VDB-90427 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 92785
Nessus Name: Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : firefox vulnerabilities (USN-3044-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 65514
OpenVAS Name: SuSE Update for MozillaFirefox, mozilla-nss openSUSE-SU-2016:1964-1 (MozillaFirefox, mozilla-nss)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Firefox 48

Timelineinfo

06/03/2016 🔍
08/02/2016 +60 days 🔍
08/02/2016 +0 days 🔍
08/02/2016 +0 days 🔍
08/03/2016 +1 days 🔍
08/04/2016 +1 days 🔍
08/04/2016 +0 days 🔍
08/08/2016 +4 days 🔍
03/16/2019 +950 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2016-74
Researcher: Mike Kaply (musicDespiteEverything)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-5260 (🔍)
GCVE (CVE): GCVE-0-2016-5260
GCVE (VulDB): GCVE-100-90437

OVAL: 🔍

SecurityFocus: 92260 - Mozilla Firefox Multiple Security Vulnerabilities
SecurityTracker: 1036508

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 08/04/2016 09:21
Updated: 03/16/2019 21:31
Changes: 08/04/2016 09:21 (79), 03/16/2019 21:31 (13)
Complete: 🔍
Cache ID: 216::103

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