by Kastro
Paper/Archive/CVE-2023-54356

CVE-2023-54356

kyverno kyverno — Kyverno before 1.9.5 Sweet32 Medium Strength Cipher Suites

EPSS 0.2%CVSS 9.3
critical.is priorityof 100
30
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 9.8.098 × 202.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Kyverno versions 1.9.4 and earlier support insecure 3DES cipher suites (TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA and TLS_RSA_WITH_3DES_EDE_CBC_SHA) on their TLS endpoints. These 64-bit block ciphers are vulnerable to the Sweet32 attack (CVE-2016-2183), which, over very long-lived TLS connections carrying large volumes of traffic, could allow an attacker to recover small amounts of plaintext. The issue is fixed in Kyverno 1.9.5 and 1.10.0.

Affected

ProductAffectedFixed inSource
kyverno< 1.9.5, 1.10.01.9.5, 1.10.0CNA

Scores by source

VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
VulnCheck (CNA)3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

advisorygithub.com/kyverno/kyverno/security/advisories/GHSA-hgv6-w7r3-w4qwwriteupvulncheck.com/advisories/kyverno-before-1.9.5-sweet32-medium-strength-cipher-suites