SB2021020504 - Multiple vulnerabilities in JetBrains IntelliJ IDEA

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Main Vulnerability Database SB2021020504

SB2021020504 - Multiple vulnerabilities in JetBrains IntelliJ IDEA

Published: February 5, 2021

Security Bulletin ID SB2021020504
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Cleartext transmission of sensitive information (CVE-ID: CVE-2021-25756)

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to software uses insecure communication channel (e.g. HTTP instead of HTTPS) to transmit sensitive information from several remote repositories. A remote attacker with ability to intercept network traffic can gain access to sensitive data.


2) Deserialization of Untrusted Data (CVE-ID: CVE-2021-25758)

CWE-ID: CWE-502 - Deserialization of Untrusted Data

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data of the workspace model. A remote user can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.

References