HOMEVULNERABILITIESCVE-2021-36372
CRITICAL

CVE-2021-36372

CWE-273Published: November 19, 2021· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

In Apache Ozone versions prior to 1.2.0, Initially generated block tokens are persisted to the metadata database and can be retrieved with authenticated users with permission to the key. Authenticated users may use them even after access is revoked.

NVD Source

Technical Analysis

CVE-2021-36372 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Apache1 product(s)
ozone
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

ADVISORYhttp://www.openwall.com/lists/oss-security/2021/11/19/1
ADVISORYhttps://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C5029c1ac-4685-8492-e3cb-ab48c5c370cf%40apache.org%3E
ADVISORYhttp://www.openwall.com/lists/oss-security/2021/11/19/1
ADVISORYhttps://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C5029c1ac-4685-8492-e3cb-ab48c5c370cf%40apache.org%3E

All References (4)

→
http://www.openwall.com/lists/oss-security/2021/11/19/1Third Party Advisory
→
https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C5029c1ac-4685-8492-e3cb-ab48c5c370cf%40apache.org%3EMailing List · Mitigation · Vendor Advisory
→
http://www.openwall.com/lists/oss-security/2021/11/19/1Third Party Advisory
→
https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C5029c1ac-4685-8492-e3cb-ab48c5c370cf%40apache.org%3EMailing List · Mitigation · Vendor Advisory

Quick Facts

CVE IDCVE-2021-36372
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-273
CISA KEVNo
Affected1 vendor(s)
PublishedNov 19, 2021

Related CVEs (CWE-273)

CVE-2015-0278
10.0
CVE-2011-3350
9.8
CVE-2011-2921
9.8
CVE-2020-24361
9.8
CVE-2017-6972
9.8
CVE-2012-1187
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-36372 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.
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