Home/CVE/curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verificatio
CVE

CVE-2020-8286

curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verificatio

curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

HIGH · CVSS 7.5 EPSS 0.00286
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
CWE-295Improper Certificate Validation
▤

Affected Products & Versions

21
haxx libcurl>= 7.41.0 and < 7.74.0
fedoraproject fedoraall versions
debian linuxall versions
netapp clustered data ontapall versions
netapp hci management nodeall versions
netapp solidfireall versions
netapp hci bootstrap osall versions
netapp hci storage node firmwareall versions
⚠

Public Exploits & PoCs

1
pochackerone.com · 1048457hackerone.com
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPotential DLL Sideloading Of Libcurl.DLL Via GUP.EXE
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Dec 2020 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

18
suse-csafopenSUSE-SU-2024:10582-1
siemens-csafSSA-398330
siemens-csafSSA-389290
siemens-csafSSA-200951
suse-csafSUSE-SU-2021:1786-1
🔗

References & Sources

18
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2021/Apr/50Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2021/Apr/51Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2021/Apr/54Mailing ListThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-200951.pdfThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatchThird Party Advisory
https://curl.se/docs/CVE-2020-8286.htmlVendor Advisory
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