CVE-2018-6185

In Cloudera Navigator Key Trustee KMS 5.12 and 5.13, incorrect default ACL values allow remote access to purge and undelete API calls on encryption zone keys. The Navigator Key Trustee KMS includes 2 API calls in addition to those in Apache Hadoop KMS: purge and undelete. The KMS ACL values for these commands are keytrustee.kms.acl.PURGE and keytrustee.kms.acl.UNDELETE respectively. The default value for the ACLs in Key Trustee KMS 5.12.0 and 5.13.0 is "*" which allows anyone with knowledge of the name of an encryption zone key and network access to the Key Trustee KMS to make those calls against known encryption zone keys. This can result in the recovery of a previously deleted, but not purged, key (undelete) or the deletion of a key in active use (purge) resulting in loss of access to encrypted HDFS data.

Published: 2019-06-07 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-6185 is rated Low Risk (32.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.46%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-6185

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.12% 0.46% +0.34%
2 2025-03-30 0.19% 0.12% -0.07%
3 2025-03-29 — 0.19% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-6185

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.9 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.2 3.6 [email protected]
5.5 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 4.9 [email protected]

Weakness enumeration for CVE-2018-6185

Affected software / configurations for CVE-2018-6185

Vendor Product Version Raw CPE
cloudera cloudera_manager 5.12.0 cpe:2.3:a:cloudera:cloudera_manager:5.12.0:*:*:*:*:*:*:*
cloudera cloudera_manager 5.12.1 cpe:2.3:a:cloudera:cloudera_manager:5.12.1:*:*:*:*:*:*:*
cloudera cloudera_manager 5.12.2 cpe:2.3:a:cloudera:cloudera_manager:5.12.2:*:*:*:*:*:*:*
cloudera cloudera_manager 5.13.0 cpe:2.3:a:cloudera:cloudera_manager:5.13.0:*:*:*:*:*:*:*
cloudera cloudera_manager 5.13.1 cpe:2.3:a:cloudera:cloudera_manager:5.13.1:*:*:*:*:*:*:*
cloudera navigator_key_trustee_kms 5.12.0 cpe:2.3:a:cloudera:navigator_key_trustee_kms:5.12.0:*:*:*:*:*:*:*
cloudera navigator_key_trustee_kms 5.13.0 cpe:2.3:a:cloudera:navigator_key_trustee_kms:5.13.0:*:*:*:*:*:*:*

References for CVE-2018-6185

cvelogic Threat Intelligence