Medium severity · published Jun 23, 2020
CVE-2020-14976
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…
5.5
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UB
Ubridge · Gns3
through 0.9.18 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14976
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-14976
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/