Multiple vulnerabilities in JetBrains TeamCity



Published: 2020-02-03
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-7909
CVE-2020-7908
CWE-ID CWE-522
CWE-1022
Exploitation vector Network
Public exploit N/A
Vulnerable software
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TeamCity
Web applications / CRM systems

Vendor JetBrains s.r.o.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Insufficiently protected credentials

EUVDB-ID: #VU24837

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7909

CWE-ID: CWE-522 - Insufficiently Protected Credentials

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain the administrator credentials.

The vulnerability exist due to the server-stored passwords can be shown via the web UI. A remote attacker can gain access to sensitive information on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TeamCity: 2017.1 - 2019.1.4

External links

http://blog.jetbrains.com
http://blog.jetbrains.com/blog/2020/01/24/jetbrains-security-bulletin-q4-2019/


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) Reverse Tabnabbing

EUVDB-ID: #VU24836

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7908

CWE-ID: CWE-1022 - Use of Web Link to Untrusted Target with window.opener Access

Exploit availability: No

Description

The vulnerability allows a remote attacker to modify certain properties on the affected system.

The vulnerability exist due to Reverse Tabnabbing on several pages. A remote attacker can modify the location property to automatically redirect the user to a malicious site.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TeamCity: 2017.1 - 2019.1.4

External links

http://blog.jetbrains.com
http://blog.jetbrains.com/blog/2020/01/24/jetbrains-security-bulletin-q4-2019/


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.



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