VDB-162487 · CVE-2020-26945 · GCVE-0-2020-26945

MyBatis up to 3.5.5 Object Stream deserialization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in MyBatis up to 3.5.5 and classified as critical. The affected element is an unknown function of the component Object Stream Handler. This manipulation causes deserialization. This vulnerability is tracked as CVE-2020-26945. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in MyBatis up to 3.5.5. Affected by this vulnerability is an unknown part of the component Object Stream Handler. 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.

The weakness was disclosed 10/11/2020. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2020-26945. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 3.5.6 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

MyBatis

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MyBatis 3.5.6

Timelineinfo

10/10/2020 🔍
10/11/2020 +1 days 🔍
10/11/2020 +0 days 🔍
11/18/2020 +38 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2020-26945 (🔍)
GCVE (CVE): GCVE-0-2020-26945
GCVE (VulDB): GCVE-100-162487

Entryinfo

Created: 10/11/2020 10:57
Updated: 11/18/2020 07:20
Changes: 10/11/2020 10:57 (14), 10/11/2020 10:59 (23), 11/16/2020 10:19 (4), 11/18/2020 07:14 (2), 11/18/2020 07:20 (14)
Complete: 🔍
Cache ID: 216::103