Out-of-bounds Write Vulnerability in FreeRDP Affected by RSA Crypto Function
CVE-2020-13398

8.3HIGH

Key Information:

Vendor

Freerdp

Status
Freerdp
Vendor
CVE Published:
22 May 2020

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-13398?

An out-of-bounds write vulnerability was identified in the FreeRDP project prior to version 2.1.1. The issue exists within the crypto_rsa_common function located in libfreerdp/crypto/crypto.c. This flaw may allow an attacker to potentially exploit memory corruption issues, affecting the integrity of the application and potentially leading to arbitrary code execution.

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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.

PoC-crash-CVE-2020-13398-
Created by SpiralBL0CK

References

https://github.com/FreeRDP/FreeRDP/compare/2.1.0...2.1.1
https://github.com/FreeRDP/FreeRDP/commit/8fb6336a4072abc...
https://github.com/FreeRDP/FreeRDP/commit/8305349a943c68b...

CVSS V3.1

Score:
8.3
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

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