SB2021080520 - Multiple vulnerabilities in JetBrains YouTrack

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Main Vulnerability Database SB2021080520

SB2021080520 - Multiple vulnerabilities in JetBrains YouTrack

Published: August 5, 2021

Security Bulletin ID SB2021080520
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) (CVE-ID: CVE-2021-37553)

CWE-ID: CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

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


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

The vulnerability exists due to insecure PRNG usage. A remote attacker can gain access to sensitive information.


2) Inadequate Encryption Strength (CVE-ID: CVE-2021-37551)

CWE-ID: CWE-326 - Inadequate Encryption Strength

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


The vulnerability allows an attacker to restore passwords from hash.

The vulnerability exists due to software uses SHA-256 algorithm for password hashing. An attacker with access to password hashes can recover password from hash.


3) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2021-37550)

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

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


The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to a race condition. A remote attacker can bypass implemented security measures.


Remediation

Install update from vendor's website.

References