Vulnerability in sopel-plugins-channelmgnt (CVE-2021-21431)
Summary
Vulnerability in sopel-plugins-channelmgnt (CVE-2021-21431). Data can be tampered with by attackers. Mitigation: upgrade to 2.0.1 or later.
Original description
The description as published by the source.
Impact
On some IRC servers, restrictions around the removal of the bot using the kick/kickban command could be bypassed when kicking multiple users at once.
We also believe it may have been possible to remove users from other channels but due to the wonder that is IRC and following RfCs, We have no POC for that.
Freenode is not affected.
Patches
Upgrade to 2.0.1 or higher
Workarounds
Do not use this plugin on networks where TARGMAX > 1.
For more information
If you have any questions or comments about this advisory:
- Open an issue on phab.
- Email us at staff(at)mirahezebots(dot)org
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2021-21431 has been found in sopel-plugins-channelmgnt.
Data can be tampered with by attackers.
What to do: upgrade sopel-plugins-channelmgnt to 2.0.1 or later.
If unsure, ask your IT team or search "sopel-plugins-channelmgnt CVE-2021-21431" on the vendor's site.
CVE-2021-21431 (sopel-plugins-channelmgnt) — CWE-20
Attack vector: adjacent-network
Patched: 2.0.1 — apply immediately
Workaround: Do not use this plugin on networks where TARGMAX > 1.
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.
A vulnerability (CWE-20) exists in sopel-plugins-channelmgnt.
Check the vendor advisory for the affected versions of sopel-plugins-channelmgnt.
Severity: ?. Data can be tampered with by attackers.
Update to 2.0.1.
Workaround: Do not use this plugin on networks where TARGMAX > 1.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'sopel-plugins-channelmgnt' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'sopel-plugins-channelmgnt' . | 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
sopel-plugins-channelmgntを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply temporary workaround mitigate
Do not use this plugin on networks where TARGMAX > 1.パッチが適用されるまでの応急処置として、Do not use this plugin on networks where TARGMAX > 1. を実施。回避策の副作用 (機能低下) を確認した上で。
-
3Apply patch patch
Upgrade sopel-plugins-channelmgnt to 2.0.1ステージング環境で 2.0.1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
4Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com
- web github.com
- web github.com
- web pypi.org