SensioLabs Symfony up to 2.8.36/3.3.16/3.4.6/4.0.6 Incomplete Fix CVE-2016-2403 improper authentication

Summaryinfo

A vulnerability, which was classified as critical, has been found in SensioLabs Symfony up to 2.8.36/3.3.16/3.4.6/4.0.6. Affected by this issue is some unknown functionality of the component Incomplete Fix CVE-2016-2403. Performing a manipulation results in improper authentication. This vulnerability is known as CVE-2018-11407. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in SensioLabs Symfony up to 2.8.36/3.3.16/3.4.6/4.0.6 (Programming Tool Software). This affects an unknown functionality of the component Incomplete Fix CVE-2016-2403. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in the Ldap component in Symfony 2.8.x before 2.8.37, 3.3.x before 3.3.17, 3.4.x before 3.4.7, and 4.0.x before 4.0.7. It allows remote attackers to bypass authentication by logging in with a "null" password and valid username, which triggers an unauthenticated bind. NOTE: this issue exists because of an incomplete fix for CVE-2016-2403.

The bug was discovered 05/25/2018. The weakness was published 06/13/2018 (Website). The advisory is shared at symfony.com. This vulnerability is uniquely identified as CVE-2018-11407 since 05/24/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 19 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277686 (Fedora Security Update for php-symfony3 (FEDORA-2018-c8ddc44bbb)).

Upgrading to version 2.7.37, 3.3.17, 3.4.7 or 4.0.7 eliminates this vulnerability.

Similar entries are available at VDB-119487, VDB-119502, VDB-119503 and VDB-119504. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Programming Tool Software

Vendor

• SensioLabs

Name

• Symfony

Version

• 2.8.0
• 2.8.1
• 2.8.2
• 2.8.3
• 2.8.4
• 2.8.5
• 2.8.6
• 2.8.7
• 2.8.8
• 2.8.9
• 2.8.10
• 2.8.11
• 2.8.12
• 2.8.13
• 2.8.14
• 2.8.15
• 2.8.16
• 2.8.17
• 2.8.18
• 2.8.19
• 2.8.20
• 2.8.21
• 2.8.22
• 2.8.23
• 2.8.24
• 2.8.25
• 2.8.26
• 2.8.27
• 2.8.28
• 2.8.29
• 2.8.30
• 2.8.31
• 2.8.32
• 2.8.33
• 2.8.34
• 2.8.35
• 2.8.36
• 3.3.0
• 3.3.1
• 3.3.2
• 3.3.3
• 3.3.4
• 3.3.5
• 3.3.6
• 3.3.7
• 3.3.8
• 3.3.9
• 3.3.10
• 3.3.11
• 3.3.12
• 3.3.13
• 3.3.14
• 3.3.15
• 3.3.16
• 3.4.0
• 3.4.1
• 3.4.2
• 3.4.3
• 3.4.4
• 3.4.5
• 3.4.6
• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.0.5
• 4.0.6

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion