MegaMek up to 0.45.0 Object Stream Connection deserialization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

A vulnerability, which was classified as critical, was found in MegaMek up to 0.45.0. Affected is an unknown code block of the component Object Stream Connection. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

MegaMek version < v0.45.1 contains a Other/Unknown vulnerability in Object Stream Connection that can result in Disclosure of confidential data, denial of service, SSRF, remote code execution.

The bug was discovered 09/29/2018. The weakness was shared 12/20/2018 (Website). The advisory is available at 0dd.zone. This vulnerability is traded as CVE-2018-1000824 since 12/20/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 82 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 0.45.1 eliminates this vulnerability.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MegaMek 0.45.1

Timelineinfo

09/29/2018 🔍
12/20/2018 +82 days 🔍
12/20/2018 +0 days 🔍
12/20/2018 +0 days 🔍
12/21/2018 +1 days 🔍
06/20/2023 +1642 days 🔍

Sourcesinfo

Advisory: 1162
Status: Not defined

CVE: CVE-2018-1000824 (🔍)

Entryinfo

Created: 12/21/2018 08:11 AM
Updated: 06/20/2023 08:29 AM
Changes: 12/21/2018 08:11 AM (58), 04/22/2020 10:58 AM (1), 06/20/2023 08:29 AM (4)
Complete: 🔍

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