CVE-2020-14976

low-risk
Published 2020-06-23

GNS3 ubridge through 0.9.18 on macOS, as used in GNS3 server before 2.1.17, allows a local attacker to read arbitrary files because it handles configuration-file errors by printing the configuration file while executing in a setuid root context.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Ubridge

Affected Vendors

Gns3

References (8)

Release Notes https://github.com/GNS3/gns3-server/releases/tag/v2.1.17
Patch https://github.com/GNS3/ubridge/commit/2eb0d1dab6a6de76cf3556130a2d52af101077db
Exploit https://theevilbit.github.io/posts/
Vendor Advisory https://www.gns3.com/
Release Notes https://github.com/GNS3/gns3-server/releases/tag/v2.1.17
Patch https://github.com/GNS3/ubridge/commit/2eb0d1dab6a6de76cf3556130a2d52af101077db
Exploit https://theevilbit.github.io/posts/
Vendor Advisory https://www.gns3.com/
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal