CVE-2020-11498

Public Exploit

Description

Slack Nebula through 1.1.0 contains a relative path vulnerability that allows a low-privileged attacker to execute code in the context of the root user via tun_darwin.go or tun_windows.go. A user can also use Nebula to execute arbitrary code in the user's own context, e.g., for user-level persistence or to bypass security controls. NOTE: the vendor states that this "requires a high degree of access and other preconditions that are tough to achieve."

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.36% Top 25%
Third-Party Advisory pwn3d.org Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/slackhq/nebula/pull/191 third party advisory patch
http://www.pwn3d.org/posts/7918501-slack-nebula-relative-path-bug-bounty-disclosure third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-11498?
CVE-2020-11498 has been scored as a high severity vulnerability.
How to fix CVE-2020-11498?
To fix CVE-2020-11498, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-11498 being actively exploited in the wild?
It is possible that CVE-2020-11498 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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