CVE-2021-36158
MEDIUMCVSS 5.9/10EPSS 0.35%
Last modified
CVE-2021-36158 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. In the xrdp package (in branches through 3.14) for Alpine Linux, RDP sessions are vulnerable to man-in-the-middle attacks because pre-generated RSA certificates and private keys are used.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.
Description
In the xrdp package (in branches through 3.14) for Alpine Linux, RDP sessions are vulnerable to man-in-the-middle attacks because pre-generated RSA certificates and private keys are used.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Alpinelinux | Aports | <= 3.14 |
References
- https://gitlab.alpinelinux.org/alpine/aports/-/issues/12811Patch, Vendor Advisory
- https://gitlab.alpinelinux.org/alpine/aports/-/issues/12811Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-36158?
In the xrdp package (in branches through 3.14) for Alpine Linux, RDP sessions are vulnerable to man-in-the-middle attacks because pre-generated RSA certificates and private keys are used.
How severe is CVE-2021-36158?
CVE-2021-36158 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.
How do I fix CVE-2021-36158?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-36158?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST