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.

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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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