Pivotal Spring Web Flow CVE-2017-8039 Incomplete Fix Security Bypass Vulnerability

Bugtraq ID:	100849
Class:	Design Error
CVE:	CVE-2017-8039
Remote:	Yes
Local:	No
Published:	Sep 15 2017 12:00AM
Updated:	Sep 15 2017 12:00AM
Credit:	he1renyagao
Vulnerable:	Pivotal Spring Web Flow 2.4.5 Pivotal Spring Web Flow 2.4.4 Pivotal Spring Web Flow 2.4.3 Pivotal Spring Web Flow 2.4.2 Pivotal Spring Web Flow 2.4.1 Pivotal Spring Web Flow 2.4
Not Vulnerable:	Pivotal Spring Web Flow 2.4.6

Pivotal Spring Web Flow CVE-2017-8039 Incomplete Fix Security Bypass Vulnerability

Pivotal Spring Web Flow is prone to a security-bypass vulnerability.

An attacker can exploit this issue to bypass security restrictions and perform unauthorized actions. This may aid in further attacks.

Spring Web Flow versions 2.4.0 through 2.4.5 are vulnerable.

NOTE: This issue is the result of an incomplete fix for the issue described in BID 98785 (Pivotal Spring Web Flow CVE-2017-4971 Security Bypass Vulnerability).

Pivotal Spring Web Flow CVE-2017-8039 Incomplete Fix Security Bypass Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Pivotal Spring Web Flow CVE-2017-8039 Incomplete Fix Security Bypass Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Pivotal Spring Web Flow CVE-2017-8039 Incomplete Fix Security Bypass Vulnerability

References:

• CVE-2017-8039: Validate data binding expression in AbstractMvcView (Spring Web Flow)
  
• Pivotal Homepage (Pivotal)
  
• SWF-1711: AbstractMvcView validates default binding expression (Github)
  
• SWF-1711: Check default binding expressions (Github)
  
• SWF-1711: Ignore (invalid) default binding expressions (Github)
  
• CVE-2017-8039: Data Binding Expression Vulnerability in Spring Web Flow (Pivotal)