VDB-239980 · CVE-2023-42793 · Issue 174860

JetBrains TeamCity up to 2023.05.3 authentication bypass

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in JetBrains TeamCity. It has been declared as critical. This issue affects some unknown processing. Executing a manipulation can lead to authentication bypass. This vulnerability is registered as CVE-2023-42793. It is possible to launch the attack remotely. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in JetBrains TeamCity and classified as critical. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a authentication bypass vulnerability. The CWE definition for the vulnerability is CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible

The weakness was published 09/19/2023. The advisory is shared for download at jetbrains.com. This vulnerability was named CVE-2023-42793 since 09/14/2023. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at github.com. It is declared as attacked. This issue was added on 10/04/2023 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 10/25/2023:

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Upgrading to version 2023.05.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (51884). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Continuous Integration Software

Vendor

JetBrains

Name

TeamCity

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector (JetBrains s.r.o.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication bypass
CWE: CWE-288 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: TeamCity 2023.05.4

Timelineinfo

09/14/2023 🔍
09/19/2023 +5 days 🔍
09/19/2023 +0 days 🔍
11/29/2024 +437 days 🔍

Sourcesinfo

Advisory: 174860
Status: Confirmed

CVE: CVE-2023-42793 (🔍)
GCVE (CVE): GCVE-0-2023-42793
GCVE (VulDB): GCVE-100-239980
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/19/2023 21:13
Updated: 11/29/2024 17:51
Changes: 09/19/2023 21:13 (48), 10/13/2023 08:51 (1), 12/27/2023 20:48 (8), 04/29/2024 14:29 (28), 07/24/2024 18:10 (2), 09/09/2024 22:30 (2), 11/29/2024 17:51 (12)
Complete: 🔍
Cache ID: 216::103