Privilege Escalation in sap-xssec (CVE-2023-50423)
Summary
Vulnerability in sap-xssec (CVE-2023-50423). Confidential information can be exposed externally. Mitigation: upgrade to 4.1.0 or later.
Original description
The description as published by the source.
Impact
SAP BTP Security Services Integration Library ([Python] sap-xssec) allows under certain conditions an escalation of privileges. On successful exploitation, an unauthenticated attacker can obtain arbitrary permissions within the application.
Patches
Upgrade to patched version >= 4.1.0
We always recommend to upgrade to the latest released version.
Workarounds
No workarounds
References
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-2023-50423 has been found in sap-xssec.
Confidential information can be exposed externally.
What to do: upgrade sap-xssec to 4.1.0 or later.
If unsure, ask your IT team or search "sap-xssec CVE-2023-50423" on the vendor's site.
CVE-2023-50423 (sap-xssec) — CWE-269
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 4.1.0 — apply immediately
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-269) exists in sap-xssec.
Check the vendor advisory for the affected versions of sap-xssec.
Severity: ?. Confidential information can be exposed externally.
Update to 4.1.0.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'sap-xssec' . 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 'sap-xssec' . | 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
sap-xssecを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade sap-xssec to 4.1.0ステージング環境で 4.1.0 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。
-
3Post-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 blogs.sap.com
- web github.com
- web me.sap.com
- web pypi.org
- web sap.com