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CVE-2015-6563
medium
CVSS 6.4
Vulnerability in c (CVE-2015-6563)
Summary
vulnerability in c (CVE-2015-6563). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2015-6563** has been found in c.
Successful exploitation can lead to full system takeover. CVSS score: 6.4/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "c CVE-2015-6563" on the vendor's site.
CVE-2015-6563 (c) — CWE-20 / CVSS v3 6.4
Attack vector: local / 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
**A vulnerability** (CWE-20) exists in c.
📍 Affected scope
c — .
🔥 Severity
Severity: Medium (CVSS 6.4/10). Successful exploitation can lead to full system takeover
🔧 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 'c' .` 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 'c' . | 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 `c` 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
- web http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html
- web http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html
- web http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
- web http://rhn.redhat.com/errata/RHSA-2016-0741.html
- web http://seclists.org/fulldisclosure/2015/Aug/54
- web http://www.openssh.com/txt/release-7.0
- web http://www.openwall.com/lists/oss-security/2015/08/22/1
- web http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
- web http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- web http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- web http://www.securityfocus.com/bid/76317
- web https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- web https://github.com/openssh/openssh-portable/commit/d4697fe9a28dab7255c60433e4dd23cf7fce8a8b
- web https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
- web https://security.gentoo.org/glsa/201512-04
- web af854a3a-2127-422b-91ae-364da2661108
- web https://support.apple.com/HT205375
- web https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-766
- web https://nvd.nist.gov/vuln/detail/CVE-2015-6563
- web https://security.netapp.com/advisory/ntap-20180201-0002
- web https://github.com/advisories/GHSA-2f6c-wrfr-f7rw