Greenshot up to 1.2.10 .NET deserialization

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Greenshot up to 1.2.10. It has been declared as critical. This affects an unknown part of the component .NET. Executing a manipulation can lead to deserialization. The identification of this vulnerability is CVE-2023-34634. The attack may be launched remotely. Furthermore, there is an exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as critical was found in Greenshot up to 1.2.10. This vulnerability affects some unknown processing of the component .NET. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Greenshot 1.2.10 and below allows arbitrary code execution because .NET content is insecurely deserialized when a .greenshot file is opened.

The weakness was shared 08/01/2023 as 173825. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-34634 since 06/07/2023. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

Applying the patch a152e2883fca7f78051b3bd6b1e5cc57355cb44c is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Exploit-DB (51633). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: a152e2883fca7f78051b3bd6b1e5cc57355cb44c

Timelineinfo

06/07/2023 🔍
08/01/2023 +55 days 🔍
08/01/2023 +0 days 🔍
10/02/2025 +793 days 🔍

Sourcesinfo

Product: github.com

Advisory: 173825
Status: Confirmed

CVE: CVE-2023-34634 (🔍)
GCVE (CVE): GCVE-0-2023-34634
GCVE (VulDB): GCVE-100-235864
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/01/2023 21:41
Updated: 10/02/2025 21:43
Changes: 08/01/2023 21:41 (44), 08/24/2023 09:06 (11), 01/02/2025 00:15 (15), 04/24/2025 19:44 (3), 10/02/2025 21:43 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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