CVE-2015-7764 : Lemur 0.1.4 does not use sufficient entropy in its IV when encrypting AES in CBC

Lemur 0.1.4 does not use sufficient entropy in its IV when encrypting AES in CBC mode.

Published 2017-08-09 16:29:00

Updated 2019-12-11 21:22:05

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2015-7764

Netflix » Lemur » Version: 0.1.4
cpe:2.3:a:netflix:lemur:0.1.4:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.16%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 51 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:P/I:N/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE-331 Insufficient Entropy

The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.

Assigned by: nvd@nist.gov (Primary)

https://github.com/Netflix/lemur/issues/117

Certificates encrypted with static IV per key · Issue #117 · Netflix/lemur · GitHub
Third Party Advisory
https://github.com/kvesteri/sqlalchemy-utils/issues/166

EncryptedType uses static IV per key · Issue #166 · kvesteri/sqlalchemy-utils · GitHub
Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/10/20/3

oss-security - Re: CVE request for sqlalchemy-utils
Mailing List;Third Party Advisory

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