Vulnerability Name:

CVE-2018-5135 (CCN-140240)

Assigned:2018-03-13
Published:2018-03-13
Updated:2019-10-03
Summary:WebExtensions can bypass normal restrictions in some circumstances and use "browser.tabs.executeScript" to inject scripts into contexts where this should not be allowed, such as pages from other WebExtensions or unprivileged "about:" pages. This vulnerability affects Firefox < 59.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
7.2 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
6.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
5.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:H/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): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-862
Vulnerability Consequences:Cross-Site Scripting
References:Source: MITRE
Type: CNA
CVE-2018-5135

Source: BID
Type: Third Party Advisory, VDB Entry
103386

Source: CCN
Type: BID-103386
Mozilla Firefox MFSA2018-06 Multiple Security Vulnerabilities

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040514

Source: CONFIRM
Type: Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1431371

Source: XF
Type: UNKNOWN
firefox-cve20185135-xss(140240)

Source: UBUNTU
Type: Third Party Advisory
USN-3596-1

Source: CCN
Type: Mozilla Foundation Security Advisory 2018-06
Security vulnerabilities fixed in Firefox 59

Source: CONFIRM
Type: Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-06/

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mozilla:firefox:*:*:*:*:*:*:*:* (Version < 59.0)

    • Configuration CCN 1:
  • cpe:/a:mozilla:firefox:58.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20185135
    V
    		CVE-2018-5135
    2022-06-30
    oval:org.opensuse.security:def:111899
    P
    		MozillaFirefox-92.0-1.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:105476
    P
    		MozillaFirefox-92.0-1.2 on GA media (Moderate)
    2021-10-01
    oval:com.ubuntu.artful:def:20185135000
    V
    		CVE-2018-5135 on Ubuntu 17.10 (artful) - medium.
    2018-06-11
    oval:com.ubuntu.bionic:def:20185135000
    V
    		CVE-2018-5135 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-06-11
    oval:com.ubuntu.bionic:def:201851350000000
    V
    		CVE-2018-5135 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-06-11
    oval:com.ubuntu.trusty:def:20185135000
    V
    		CVE-2018-5135 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-06-11
    oval:com.ubuntu.xenial:def:201851350000000
    V
    		CVE-2018-5135 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-06-11
    oval:com.ubuntu.xenial:def:20185135000
    V
    		CVE-2018-5135 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-06-11
    BACK
    mozilla firefox *
    mozilla firefox 58.0