OS command injection in XStream
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-26217 |
| CWE-ID | CWE-78 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
xstream Universal components / Libraries / Libraries used by multiple products |
| Vendor | XStream |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) OS Command Injection
EUVDB-ID: #VU49039
Risk: Medium
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-26217
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 user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation, when processing blacklists. A remote user 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 versionsxstream: 1.4.1 - 1.4.13
External linkshttp://github.com/x-stream/xstream/commit/0fec095d534126931c99fd38e9c6d41f5c685c1a
http://github.com/x-stream/xstream/security/advisories/GHSA-mw36-7c6c-q4q2
http://lists.debian.org/debian-lts-announce/2020/12/msg00001.html
http://www.debian.org/security/2020/dsa-4811
http://x-stream.github.io/CVE-2020-26217.html
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.
