Vulnerability Name:

CVE-2016-4423 (CCN-113797)

Assigned:2016-05-09
Published:2016-05-09
Updated:2016-06-03
Summary:The attemptAuthentication function in Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php in Symfony before 2.3.41, 2.7.x before 2.7.13, 2.8.x before 2.8.6, and 3.0.x before 3.0.6 does not limit the length of a username stored in a session, which allows remote attackers to cause a denial of service (session storage consumption) via a series of authentication attempts with long, non-existent usernames.
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:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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): None
Integrity (I): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/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): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-399
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2016-4423

Source: CCN
Type: Symfony Web site
High Performance PHP Framework for Web Development - Symfony

Source: DEBIAN
Type: UNKNOWN
DSA-3588

Source: XF
Type: UNKNOWN
symfony-cve20164423-dos(113797)

Source: CONFIRM
Type: UNKNOWN
https://github.com/symfony/symfony/pull/18733

Source: CCN
Type: Symfony blog, May 9, 2016
CVE-2016-4423: Large username storage in session

Source: CONFIRM
Type: Vendor Advisory
https://symfony.com/blog/cve-2016-4423-large-username-storage-in-session

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2016-4423

Vulnerable Configuration:Configuration 1:
  • cpe:/a:sensiolabs:symfony:*:*:*:*:*:*:*:* (Version <= 2.3.40)
  • OR cpe:/a:sensiolabs:symfony:2.7.0:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.1:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.2:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.3:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.4:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.5:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.6:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.7:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.8:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.9:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.10:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.11:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.7.12:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.8.0:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.8.1:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.8.2:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.8.3:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.8.4:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:2.8.5:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:3.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:3.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:3.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:3.0.3:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:3.0.4:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:3.0.5:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:sensiolabs:symfony:3.0.6:*:*:*:*:*:*:*
  • OR cpe:/a:sensiolabs:symfony:3.0.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.cisecurity:def:857
    P
    		DSA-3588-1 -- symfony -- security update
    2016-07-29
    oval:com.ubuntu.xenial:def:201644230000000
    V
    		CVE-2016-4423 on Ubuntu 16.04 LTS (xenial) - medium.
    2016-06-01
    oval:com.ubuntu.artful:def:20164423000
    V
    		CVE-2016-4423 on Ubuntu 17.10 (artful) - medium.
    2016-06-01
    oval:com.ubuntu.disco:def:201644230000000
    V
    		CVE-2016-4423 on Ubuntu 19.04 (disco) - medium.
    2016-06-01
    oval:com.ubuntu.bionic:def:20164423000
    V
    		CVE-2016-4423 on Ubuntu 18.04 LTS (bionic) - medium.
    2016-06-01
    oval:com.ubuntu.cosmic:def:201644230000000
    V
    		CVE-2016-4423 on Ubuntu 18.10 (cosmic) - medium.
    2016-06-01
    oval:com.ubuntu.cosmic:def:20164423000
    V
    		CVE-2016-4423 on Ubuntu 18.10 (cosmic) - medium.
    2016-06-01
    oval:com.ubuntu.bionic:def:201644230000000
    V
    		CVE-2016-4423 on Ubuntu 18.04 LTS (bionic) - medium.
    2016-06-01
    oval:com.ubuntu.xenial:def:20164423000
    V
    		CVE-2016-4423 on Ubuntu 16.04 LTS (xenial) - medium.
    2016-06-01
    BACK
    sensiolabs symfony *
    sensiolabs symfony 2.7.0
    sensiolabs symfony 2.7.1
    sensiolabs symfony 2.7.2
    sensiolabs symfony 2.7.3
    sensiolabs symfony 2.7.4
    sensiolabs symfony 2.7.5
    sensiolabs symfony 2.7.6
    sensiolabs symfony 2.7.7
    sensiolabs symfony 2.7.8
    sensiolabs symfony 2.7.9
    sensiolabs symfony 2.7.10
    sensiolabs symfony 2.7.11
    sensiolabs symfony 2.7.12
    sensiolabs symfony 2.8.0
    sensiolabs symfony 2.8.1
    sensiolabs symfony 2.8.2
    sensiolabs symfony 2.8.3
    sensiolabs symfony 2.8.4
    sensiolabs symfony 2.8.5
    sensiolabs symfony 3.0.0
    sensiolabs symfony 3.0.1
    sensiolabs symfony 3.0.2
    sensiolabs symfony 3.0.3
    sensiolabs symfony 3.0.4
    sensiolabs symfony 3.0.5
    debian debian linux 8.0
    sensiolabs symfony 3.0.6
    sensiolabs symfony 3.0.0