Remote OS command injection in Bitbucket Server and Data Center
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-43781 |
| CWE-ID | CWE-78 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Bitbucket Server Server applications / Application servers Bitbucket Data Center Server applications / Other server solutions |
| Vendor | Atlassian |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) OS Command Injection
EUVDB-ID: #VU69408
Risk: High
CVSSv3.1: 9.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C]
CVE-ID: CVE-2022-43781
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation when processing usernames. A remote attacker with ability to control their own username (e.g. with enabled "Allow public signup" option) can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsBitbucket Server: 7.0.1 - 8.4.1
Bitbucket Data Center: 7.0.1 - 8.4.1
External linkshttp://confluence.atlassian.com/x/Y4hXRg
http://jira.atlassian.com/browse/BSERV-13522
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. However, a fully functional exploit for this vulnerability is available.
