Multiple vulnerabilities in JetBrains TeamCity

Published: 2023-09-21 | Updated: 2024-02-27

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-43566 CVE-2023-42793
CWE-ID	CWE-79 CWE-288
Exploitation vector	Network
Public exploit	Vulnerability #2 is being exploited in the wild.
Vulnerable software Subscribe	TeamCity Web applications / CRM systems
Vendor	JetBrains s.r.o.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Stored cross-site scripting

EUVDB-ID: #VU80949

Risk: Low

CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-43566

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data during nodes configuration. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

TeamCity: 2023.05 - 2023.05.3

External links

http://www.jetbrains.com/privacy-security/issues-fixed/

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.

2) Authentication bypass using an alternate path or channel

EUVDB-ID: #VU80950

Risk: High

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-42793

CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an authentication bypass using an alternate path. A remote attacker can bypass authentication and execute arbitrary code on the system.