Multiple vulnerabilities in Microsoft Azure DevOps Server
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2023-38155 CVE-2023-33136 |
| CWE-ID | CWE-502 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Azure DevOps Server Server applications / Application servers |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Deserialization of Untrusted Data
EUVDB-ID: #VU80692
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-38155
CWE-ID:
CWE-502 - Deserialization of Untrusted Data
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to insecure input validation when processing serialized data within the MachinePropertyBag class. A local user can pass specially crafted data to the server and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
Vulnerable software versionsAzure DevOps Server: before 20230601.3
CPE2.3 External linkshttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-38155
https://www.zerodayinitiative.com/advisories/ZDI-23-1403/
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.
2) Input validation error
EUVDB-ID: #VU80693
Risk: Medium
CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2023-33136
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insufficient validation of user-supplied input in Azure DevOps Server. A remote user can pass specially crafted input to the application and execute arbitrary code on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsAzure DevOps Server: before 20230601.3
CPE2.3 External linkshttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-33136
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.
