CVE-2013-3587

high-risk
Published 2020-02-21

The HTTPS protocol, as used in unspecified web applications, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which makes it easier for man-in-the-middle attackers to obtain plaintext secret values by observing length differences during a series of guesses in which a string in an HTTP request URL potentially matches an unknown string in an HTTP response body, aka a "BREACH" attack, a different issue than CVE-2012-4929.

Do I need to act?

!
28.1% chance of exploitation in next 30 days
EPSS score — higher than 72% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Vendors

F5
54
/ 100
high-risk
Severity 18/34 · Moderate
Exploitability 15/34 · Moderate
Exposure 21/34 · High