CVE-2023-29433
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedMissing Authorization vulnerability in 腾讯云 tencentcloud-cos allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects tencentcloud-cos: from n/a through 1.0.7.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceMissing authorization vulnerability in Tencent Cloud COS (tencentcloud-cos) library versions through 1.0.7 allows attackers to exploit incorrectly configured access control security levels. The library fails to properly validate authorization, potentially enabling unauthorized access to cloud object storage resources.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Identify tencentcloud-cos library versionRun 'pip show tencentcloud-cos' or check your package-lock.json / requirements.txt for the tencentcloud-cos package versionAffected if The displayed version is 1.0.7 or any version lower than 1.0.7
-
Confirm library is in useSearch project code for imports of 'tencentcloud.cos' or 'tencentcloud_cos' modules, and verify the library is actually being called at runtimeAffected if The library is imported and invoked in your application's code execution path
-
Check for bucket access control configurationReview COS bucket policies and ACL settings where the tencentcloud-cos library interacts - look for overly permissive policies (e.g., 'Principal: "*"' with 'Effect: "Allow"' on sensitive operations)Affected if COS buckets accessed by this library have misconfigured ACLs or overly permissive policies that could bypass authorization checks
You are affected if tencentcloud-cos version 1.0.7 or earlier is installed AND your application uses this library to interact with COS buckets that have weak or permissive access control configurations.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpdate tencentcloud-cos to the latest patched version and review/fix access control configurations in COS buckets to ensure proper authorization enforcement.
Latest version of tencentcloud-cos after 1.0.7 (check Tencent Cloud official sources for specific version)
- Check the official Tencent Cloud SDK repository or Tencent Cloud documentation for the latest version of tencentcloud-cos
- Upgrade tencentcloud-cos to the latest available version that includes the security fix for the missing authorization vulnerability
- After upgrading, verify that the access control configurations are properly set according to Tencent Cloud best practices
- Test the application to ensure the authorization checks are functioning correctly
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-29433 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-29433 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data