CVE-2017-5901
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 State Bank of India State Bank Anywhere app 5.1.0 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
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 confidenceThe State Bank Anywhere iOS app version 5.1.0 fails to perform X.509 certificate validation on SSL/TLS connections, allowing attackers to present fraudulent certificates and intercept encrypted communications via man-in-the-middle attacks.
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= 5.1.0CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/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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Identify the installed State Bank Anywhere app versionOn the iOS device, go to Settings > Apps > State Bank Anywhere, or open the app and navigate to the About/Profile section to view the version number. Alternatively, connect the device to a computer with iTunes or Finder and check the app information.Affected if The installed version is exactly 5.1.0
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Confirm the app handles SSL/TLS connectionsUse a network traffic analysis tool (such as a proxy like Burp Suite or Charles Proxy) to intercept traffic from the State Bank Anywhere app to its backend servers. Attempt to present an invalid or self-signed certificate during the connection attempt.Affected if The app successfully establishes a connection when presented with an invalid, expired, or self-signed certificate, indicating certificate validation is not being performed.
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Review network code for certificate validation implementationIf you have access to the app binary or source code, examine the network request handling code (NSURLSession, AFNetworking, or similar libraries) for proper implementation of certificate validation. Look for calls that verify the server trust (SecTrustEvaluate) and validate the certificate chain and hostname.Affected if The code does not implement certificate chain validation, hostname verification, or certificate expiration checks before accepting SSL/TLS connections.
You are affected if the installed State Bank Anywhere app version is exactly 5.1.0 and the app accepts invalid or fraudulent SSL/TLS certificates without proper validation.
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 dataImplement proper SSL/TLS certificate validation including verification of the certificate chain, hostname validation, and checking certificate expiration; consider certificate pinning for sensitive endpoints.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,960.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-5901 — 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-2017-5901 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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- 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
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