CVE-2013-5157
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 · uneditedThe Twitter subsystem in Apple iOS before 7 does not require API conformity for access to Twitter daemon interfaces, which allows attackers to post Tweets via a crafted app that sends direct requests to the daemon.
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 · high confidenceIn iOS before version 7, the Twitter subsystem does not enforce API conformity for access to the Twitter daemon (Twitter's background service). This means a malicious application can bypass the proper Twitter API and directly send requests to the Twitter daemon, allowing unauthorized tweet posting without user consent through the legitimate API.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 6.1.4= 1.0.0= 1.0.1= 1.0.2= 1.1.0= 1.1.1= 1.1.2= 1.1.3= 1.1.4= 1.1.5= 2.0= 2.0.0CVSS 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
- Authentication
- None
- Confidentiality
- None
- Integrity
- Partial
- Availability
- None
AV:N/AC:L/Au:N/C:N/I:P/A:N
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.
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Check the iOS version installed on the deviceGo to Settings > General > About > Version and note the displayed version numberAffected if The version is 6.1.4 or lower, or matches any of these: 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 2.0, or 2.0.0
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Verify if a Twitter account is configuredGo to Settings > Twitter and check if a Twitter account is listed under AccountsAffected if A Twitter account is configured on the device and the iOS version is in the affected range
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Review installed applications for suspicious Twitter activityCheck the device for any third-party applications that request Twitter permissions, especially those from untrusted sourcesAffected if Unknown or untrusted apps with Twitter permissions are installed on an affected iOS version
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Monitor for unauthorized tweetsReview the Twitter account activity log (via twitter.com/settings/applications) for tweets that you did not intentionally composeAffected if Tweets appear in the account history that you did not author
The device is affected if it runs iOS version 6.1.4 or lower (or any version listed in the affected products) AND has a Twitter account configured, enabling a malicious app to post without user consent through the Twitter daemon.
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.
From vendor dataUpdate affected iOS devices to version 7 or later. For organizations, deploy mobile device management (MDM) policies to ensure all iOS devices are running supported versions.
- Consultation4.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,912.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-5157 — 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-2013-5157 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
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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