Arbitrary Code Execution Vulnerability in Greenshot by Greenshot
CVE-2023-34634

7.8HIGH

Key Information:

Vendor

Greenshot

Status
Greenshot
Vendor
CVE Published:
1 August 2023

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 43%

What is CVE-2023-34634?

Greenshot versions 1.2.10 and earlier are vulnerable due to insecure deserialization of .greenshot files. This flaw could allow an attacker to execute arbitrary code on the user's system by crafting a malicious .greenshot file. When opened, the application fails to properly validate the data, creating an avenue for potential exploitation. Users are advised to upgrade to a patched version to mitigate the risk of this vulnerability.

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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-2023-34634
Created by radman404

References

https://greenshot.atlassian.net/browse/BUG-3061
https://github.com/greenshot/greenshot/commit/a152e2883fc...
https://www.exploit-db.com/exploits/51633

EPSS Score

43% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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