Vulnerability Name:

CVE-2019-11325 (CCN-172182)

Assigned:2019-11-13
Published:2019-11-13
Updated:2020-08-24
Summary:An issue was discovered in Symfony before 4.2.12 and 4.3.x before 4.3.8. The VarExport component incorrectly escapes strings, allowing some specially crafted ones to escalate to execution of arbitrary PHP code. This is related to symfony/var-exporter.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-116
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2019-11325

Source: XF
Type: UNKNOWN
symfony-cve201911325-code-exec(172182)

Source: CONFIRM
Type: Release Notes, Third Party Advisory
https://github.com/symfony/symfony/releases/tag/v4.3.8

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/symfony/var-exporter/compare/d8bf442...57e00f3

Source: CCN
Type: Symfony Web site
symfony

Source: CCN
Type: Symfony blog, November 13, 2019
CVE-2019-11325: Fix escaping of strings in VarExporter

Source: CONFIRM
Type: Vendor Advisory
https://symfony.com/blog/cve-2019-11325-fix-escaping-of-strings-in-varexporter

Source: CONFIRM
Type: Release Notes, Vendor Advisory
https://symfony.com/blog/symfony-4-3-8-released

Vulnerable Configuration:Configuration 1:
  • cpe:/a:sensiolabs:symfony:*:*:*:*:*:*:*:* (Version >= 4.2.0 and < 4.2.12)
  • OR cpe:/a:sensiolabs:symfony:*:*:*:*:*:*:*:* (Version >= 4.3.0 and < 4.3.8)

    • Configuration CCN 1:
  • cpe:/a:sensiolabs:symfony:4.2.11:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2019113250000000
    V
    		CVE-2019-11325 on Ubuntu 19.04 (disco) - medium.
    2019-11-21
    oval:com.ubuntu.bionic:def:2019113250000000
    V
    		CVE-2019-11325 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-11-21
    oval:com.ubuntu.xenial:def:2019113250000000
    V
    		CVE-2019-11325 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-11-21
    BACK
    sensiolabs symfony *
    sensiolabs symfony *
    sensiolabs symfony 4.2.11