National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2020-11498 Detail

Current 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."

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 8.8 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.pwn3d.org/posts/7918501-slack-nebula-relative-path-bug-bounty-disclosure Exploit Third Party Advisory
https://github.com/slackhq/nebula/pull/191 Patch Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:slack:nebula:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
1.1.0


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-11498
NVD Published Date:
04/02/2020
NVD Last Modified:
04/06/2020