HOMEVULNERABILITIESCVE-2012-4449
CRITICAL

CVE-2012-4449

CWE-327Published: October 30, 2017· Updated: Jun 16, 2026

9.8
CVSS v3.1

Official Description

Apache Hadoop before 0.23.4, 1.x before 1.0.4, and 2.x before 2.0.2 generate token passwords using a 20-bit secret when Kerberos security features are enabled, which makes it easier for context-dependent attackers to crack secret keys via a brute-force attack.

NVD Source

Technical Analysis

CVE-2012-4449 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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Apache1 product(s)
hadoop
Source: NVD CPE · 8 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

ADVISORYhttps://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html#topic_1_0
ADVISORYhttps://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html#topic_1_0

All References (4)

→
http://mail-archives.apache.org/mod_mbox/hadoop-general/201210.mbox/%3CCA+z3+9FYdPmzBEaMZ71SUqzRx=eU=o4mSHUsbrpzgR9X_F1c0Q%40mail.gmail.com%3E
→
https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html#topic_1_0Issue Tracking · Third Party Advisory
→
http://mail-archives.apache.org/mod_mbox/hadoop-general/201210.mbox/%3CCA+z3+9FYdPmzBEaMZ71SUqzRx=eU=o4mSHUsbrpzgR9X_F1c0Q%40mail.gmail.com%3E
→
https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html#topic_1_0Issue Tracking · Third Party Advisory

Quick Facts

CVE IDCVE-2012-4449
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-327
CISA KEVNo
Affected1 vendor(s)
PublishedOct 30, 2017

Related CVEs (CWE-327)

CVE-2026-50086
10.0
CVE-2025-54426
9.9
CVE-2019-13022
9.8
CVE-2017-9859
9.8
CVE-2020-10377
9.8
CVE-2017-9466
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2012-4449 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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