Method Access Flaw in Jinjava by HubSpot
CVE-2018-18893

5.3MEDIUM

Key Information:

Vendor

Hubspot

Status
Jinjava
Vendor
CVE Published:
3 January 2019

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-18893?

Jinjava versions before 2.4.6 contain a vulnerability that allows unauthorized method access due to improper blocking of the getClass method. This issue is associated with the file com/hubspot/jinjava/el/ext/JinjavaBeanELResolver.java. Exploitation of this flaw can enable malicious actors to invoke methods that should be restricted, potentially leading to unauthorized access to sensitive application features.

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-2018-18893
Created by LycsHub

References

https://github.com/HubSpot/jinjava/blob/master/CHANGES.md
x_refsource_MISC
https://github.com/HubSpot/jinjava/pull/230
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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