Vulnerability Name:

CVE-2018-12370 (CCN-145349)

Assigned:2018-06-26
Published:2018-06-26
Updated:2018-12-06
Summary:In Reader View SameSite cookie protections are not checked on exiting. This allows for a payload to be triggered when Reader View is exited if loaded by a malicious site while Reader mode is active, bypassing CSRF protections. This vulnerability affects Firefox < 61.
CVSS v3 Severity:8.8 High (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 (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
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/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): None
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-352
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2018-12370

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1041193

Source: CONFIRM
Type: Issue Tracking, Patch, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1456652

Source: XF
Type: UNKNOWN
firefox-cve201812370-sec-bypass(145349)

Source: GENTOO
Type: Third Party Advisory
GLSA-201810-01

Source: UBUNTU
Type: Third Party Advisory
USN-3705-1

Source: CCN
Type: Mozilla Foundation Security Advisory 2018-15
Security vulnerabilities fixed in Firefox 61

Source: CONFIRM
Type: Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-15/

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-12370

Vulnerable Configuration:Configuration 1:
  • cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

    • Configuration 2:
  • cpe:/a:mozilla:firefox:*:*:*:*:*:*:*:* (Version < 61.0)

    • Configuration CCN 1:
  • cpe:/a:mozilla:firefox:60.0.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    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.bionic:def:2018123700000000
    V
    		CVE-2018-12370 on Ubuntu 18.04 LTS (bionic) - low.
    2018-10-18
    oval:com.ubuntu.bionic:def:201812370000
    V
    		CVE-2018-12370 on Ubuntu 18.04 LTS (bionic) - low.
    2018-10-18
    oval:com.ubuntu.xenial:def:2018123700000000
    V
    		CVE-2018-12370 on Ubuntu 16.04 LTS (xenial) - low.
    2018-10-18
    oval:com.ubuntu.trusty:def:201812370000
    V
    		CVE-2018-12370 on Ubuntu 14.04 LTS (trusty) - low.
    2018-10-18
    oval:com.ubuntu.xenial:def:201812370000
    V
    		CVE-2018-12370 on Ubuntu 16.04 LTS (xenial) - low.
    2018-10-18
    oval:com.ubuntu.artful:def:201812370000
    V
    		CVE-2018-12370 on Ubuntu 17.10 (artful) - low.
    2018-06-27
    BACK
    canonical ubuntu linux 14.04
    canonical ubuntu linux 16.04
    canonical ubuntu linux 17.10
    canonical ubuntu linux 18.04
    mozilla firefox *
    mozilla firefox 60.0.1