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CVE-2017-3732
medium
CVSS 5.9
Information Disclosure in openssl (CVE-2017-3732)
Summary
vulnerability in openssl (CVE-2017-3732). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2017-3732** has been found in openssl.
Confidential information can be exposed externally. CVSS score: 5.9/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "openssl CVE-2017-3732" on the vendor's site.
CVE-2017-3732 (openssl) — CWE-200 / CVSS v3 5.9
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**information disclosure** (CWE-200) exists in openssl.
📍 Affected scope
openssl — .
🔥 Severity
Severity: Medium (CVSS 5.9/10). Confidential information can be exposed externally
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'openssl' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'openssl' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `openssl` を grep し、稼働しているサービス・バージョンを把握する。
-
7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
References
- patch http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- patch http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- patch http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- advisory http://www.securityfocus.com/bid/95814
- advisory http://www.securitytracker.com/id/1037717
- advisory https://access.redhat.com/errata/RHSA-2018:2185
- advisory https://access.redhat.com/errata/RHSA-2018:2186
- advisory https://access.redhat.com/errata/RHSA-2018:2187
- advisory https://access.redhat.com/errata/RHSA-2018:2568
- advisory https://access.redhat.com/errata/RHSA-2018:2575
- advisory https://access.redhat.com/errata/RHSA-2018:2713
- patch https://github.com/openssl/openssl/commit/a59b90bf491410f1f2bc4540cc21f1980fd14c5b
- advisory https://security.FreeBSD.org/advisories/FreeBSD-SA-17:02.openssl.asc
- advisory https://security.gentoo.org/glsa/201702-07
- advisory https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us
- advisory https://www.openssl.org/news/secadv/20170126.txt
- patch https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- advisory https://www.tenable.com/security/tns-2017-04