Multiple vulnerabilities in JetBrains YouTrack



Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-37553
CVE-2021-37551
CVE-2021-37550
CWE-ID CWE-338
CWE-326
CWE-367
Exploitation vector Network
Public exploit N/A
Vulnerable software
 YouTrack
Web applications / CMS

Vendor JetBrains s.r.o.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

EUVDB-ID: #VU55612

Risk: Low

CVSSv4.0: 1.7 [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]

CVE-ID: CVE-2021-37553

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

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

YouTrack: 2020.1.659 - 2021.1.15276

CPE2.3 External links

https://blog.jetbrains.com/blog/2021/08/05/jetbrains-security-bulletin-q2-2021


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Inadequate Encryption Strength

EUVDB-ID: #VU55611

Risk: Low

CVSSv4.0: 4 [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]

CVE-ID: CVE-2021-37551

CWE-ID: CWE-326 - Inadequate Encryption Strength

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

YouTrack: 2020.1.659 - 2021.1.15276

CPE2.3 External links

https://blog.jetbrains.com/blog/2021/08/05/jetbrains-security-bulletin-q2-2021


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU55610

Risk: Low

CVSSv4.0: 1.3 [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]

CVE-ID: CVE-2021-37550

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

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

YouTrack: 2020.1.659 - 2021.1.15276

CPE2.3 External links

https://blog.jetbrains.com/blog/2021/08/05/jetbrains-security-bulletin-q2-2021


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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