Remote Code Execution Vulnerability in Spring Security OAuth by Pivotal
CVE-2016-4977

8.8HIGH

Key Information:

Vendor

Pivotal

Status
Spring Security Oauth
Vendor
CVE Published:
25 May 2017

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 79%

What is CVE-2016-4977?

In Spring Security OAuth versions 1.0.0 to 1.0.5 and 2.0.0 to 2.0.9, the processing of authorization requests allows the response_type parameter value to be executed as Spring SpEL. This design flaw enables unauthorized users to craft response_type values that trigger remote code execution, posing significant security risks.

Affected Version(s)

Spring Security OAuth 2.0.0 to 2.0.9

Spring Security OAuth 1.0.0 to 1.0.5

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2016-4977-POC
Created by N0b1e6

References

https://pivotal.io/security/cve-2016-4977
x_refsource_CONFIRM
https://lists.apache.org/thread.html/37d7e820fc65a768de3e...
mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/0841d849c23418c473cc...
mailing-listx_refsource_MLIST

EPSS Score

79% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.