Vulnerability Description
When Octopus Server is installed using a custom folder location, folder ACLs are not set correctly and could lead to an unprivileged user using DLL side-loading to gain privileged access.
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Octopus | Octopus Deploy | >= 0.9, < 2020.4.229 |
| Octopus | Octopus Server | >= 2020.5.0, < 2020.5.256 |
Related Weaknesses (CWE)
References
- https://advisories.octopus.com/adv/2021-01---Local-privilege-escalation-in-Octop
- https://advisories.octopus.com/adv/2021-01---Local-privilege-escalation-in-Octop
FAQ
What is CVE-2021-26556?
CVE-2021-26556 is a vulnerability with a CVSS score of 7.8 (HIGH). When Octopus Server is installed using a custom folder location, folder ACLs are not set correctly and could lead to an unprivileged user using DLL side-loading to gain privileged access.
How severe is CVE-2021-26556?
CVE-2021-26556 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-26556?
Check the references section above for vendor advisories and patch information. Affected products include: Octopus Octopus Deploy, Octopus Octopus Server.