Vulnerability Name:

CVE-2016-2826 (CCN-113864)

Assigned:2016-06-07
Published:2016-06-07
Updated:2016-11-28
Summary:The maintenance service in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 on Windows does not prevent MAR extracted-file modification during updater execution, which might allow local users to gain privileges via a Trojan horse file.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-264
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2016-2826

Source: CONFIRM
Type: Vendor Advisory
http://www.mozilla.org/security/announce/2016/mfsa2016-55.html

Source: BID
Type: UNKNOWN
91075

Source: CCN
Type: BID-91075
Mozilla Firefox Multiple Security Vulnerabilities

Source: SECTRACK
Type: UNKNOWN
1036057

Source: CONFIRM
Type: UNKNOWN
https://bugzilla.mozilla.org/show_bug.cgi?id=1237219

Source: XF
Type: UNKNOWN
firefox-cve20162826-priv-esc(113864)

Source: CCN
Type: Mozilla Foundation Security Advisory 2016-55
File overwrite and privilege escalation through Mozilla Windows updater

Vulnerable Configuration:Configuration 1:
  • cpe:/o:microsoft:windows:*:*:*:*:*:*:*:*
  • AND
  • cpe:/a:mozilla:firefox_esr:45.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:firefox_esr:45.1.1:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:microsoft:windows:*:*:*:*:*:*:*:*
  • AND
  • cpe:/a:mozilla:firefox:*:*:*:*:*:*:*:* (Version <= 46.0.1)

    • Configuration CCN 1:
  • cpe:/a:mozilla:firefox:46.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.precise:def:20162826000
    V
    		CVE-2016-2826 on Ubuntu 12.04 LTS (precise) - medium.
    2016-06-13
    oval:com.ubuntu.trusty:def:20162826000
    V
    		CVE-2016-2826 on Ubuntu 14.04 LTS (trusty) - medium.
    2016-06-13
    oval:com.ubuntu.xenial:def:20162826000
    V
    		CVE-2016-2826 on Ubuntu 16.04 LTS (xenial) - medium.
    2016-06-13
    oval:com.ubuntu.xenial:def:201628260000000
    V
    		CVE-2016-2826 on Ubuntu 16.04 LTS (xenial) - medium.
    2016-06-13
    BACK
    microsoft windows *
    mozilla firefox esr 45.1.0
    mozilla firefox esr 45.1.1
    microsoft windows *
    mozilla firefox *
    mozilla firefox 46.0