Rakuten CardApplication · Rakutencard

CVE-2015-2988

HIGH · 7.4 CVSS v3.0 Published 2017-10-10
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
83/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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 · unedited
Rakuten card App for iOS 5.2.0 through 5.2.4 does not verify SSL certificates which might allow remote attackers to execute man-in-the-middle attacks.

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 confidence

The Rakuten card App for iOS versions 5.2.0 through 5.2.4 fails to verify SSL certificates during TLS connections, allowing attackers to perform man-in-the-middle attacks and intercept sensitive communications between the app and backend servers.

MitigationUpdate the Rakuten card app to version 5.2.5 or later which implements proper SSL certificate validation, or implement certificate pinning in the networking layer if patching is not possible.

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
Rakuten CardApplication
Affected:= 5.2.0= 5.2.1= 5.2.2= 5.2.3= 5.2.4

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
High
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the installed Rakuten Card app version
    On the iOS device, open the App Store app, search for 'Rakuten Card' or 'ラクテンカード', tap on the app, and scroll to the Version information. Alternatively, go to Settings > General > iPhone Storage (or Apps), find the Rakuten Card app, and view the version number.
    Affected if The displayed version is 5.2.0, 5.2.1, 5.2.2, 5.2.3, or 5.2.4.
  2. Confirm the app is the official Rakuten Card app
    Verify the app name matches 'Rakuten Card' or 'ラクテンカード' and the developer is 'Rakuten Card, Inc.' or 'ラクテンカード株式会社'. Suspiciously named apps claiming to be Rakuten Card should be investigated further.
    Affected if The installed app is the official Rakuten Card app by Rakuten Card, Inc. and the version falls within 5.2.0-5.2.4.
  3. Understand the vulnerability scope
    This vulnerability exists in the app's network layer where SSL certificate validation is disabled or improperly implemented. The app accepts any TLS connection without verifying the server's SSL certificate, allowing attackers on the same network to intercept credentials and session data.
    Affected if The app version is within the affected range AND the app is used on networks where attackers could perform man-in-the-middle attacks (such as public WiFi).

If the installed Rakuten Card app version is 5.2.0, 5.2.1, 5.2.2, 5.2.3, or 5.2.4 on iOS, the app is vulnerable to SSL certificate verification bypass and communications can be intercepted by attackers on the same network.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update the Rakuten card app to version 5.2.5 or later which implements proper SSL certificate validation, or implement certificate pinning in the networking layer if patching is not possible.

Fix this in Rakuten Card Scoped from the published advisory
  • Consultation2.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,290
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2015-2988 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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