MEDIUM
CVE-2020-28053
CWE-863Published: November 23, 2020· Updated: Jun 17, 2026
6.5
CVSS v3.1
Official Description
HashiCorp Consul and Consul Enterprise 1.2.0 up to 1.8.5 allowed operators with operator:read ACL permissions to read the Connect CA private key configuration. Fixed in 1.6.10, 1.7.10, and 1.8.6.
Technical Analysis
CVE-2020-28053 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Vendors & Products
hashicorp1 product(s)
consul
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (6)
→
https://github.com/hashicorp/consul/blob/master/CHANGELOG.md#186-november-19-2020Release Notes · Third Party Advisory
→
https://security.gentoo.org/glsa/202208-09Third Party Advisory
→
https://www.hashicorp.com/blog/category/consulProduct · Vendor Advisory
→
https://github.com/hashicorp/consul/blob/master/CHANGELOG.md#186-november-19-2020Release Notes · Third Party Advisory
→
https://security.gentoo.org/glsa/202208-09Third Party Advisory
→
https://www.hashicorp.com/blog/category/consulProduct · Vendor Advisory
Quick Facts
CVE IDCVE-2020-28053
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-863
CISA KEVNo
Affected1 vendor(s)
PublishedNov 23, 2020
Related CVEs (CWE-863)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-28053 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.