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NesvarnikApplication

CVE-2014-7109

MEDIUM · 5.4 CVSS v2.0 Published 2014-10-19
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
59/100
Remediation priority · Elevated
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
The Nesvarnik (aka cz.dtest.nesvarnik) application 1.0 for Android 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 confidence

The Nesvarnik Android application version 1.0 fails to validate X.509 certificates from SSL servers, allowing man-in-the-middle attackers to intercept encrypted communications by presenting fraudulent certificates and thereby obtain sensitive information.

MitigationImplement proper X.509 certificate validation in the application, including certificate chain verification, hostname validation, and checking against the device's trusted CA store.

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
NesvarnikApplication
Affected:= 1

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
Adjacent
Complexity
M
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:A/AC:M/Au:N/C:P/I:P/A:P

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 if Nesvarnik app is installed
    Open Android Settings > Apps > Applications Manager, or use 'adb shell pm list packages' to list all installed packages. Look for package name containing 'nesvarnik'.
    Affected if Nesvarnik application is present on the device
  2. Check installed version of Nesvarnik
    In Android Settings > Apps > Nesvarnik, view the Version or Version Name field. Alternatively, use 'adb shell dumpsys package [package_name]' to retrieve version info.
    Affected if Version is 1.0 exactly (version code 1)
  3. Confirm app uses network connections
    Check app permissions in Settings > Apps > Nesvarnik > Permissions. Look for INTERNET permission. Also inspect network traffic using a proxy tool to see if app makes HTTPS requests.
    Affected if App has INTERNET permission and makes HTTPS connections to remote servers

User is affected if Nesvarnik app version 1.0 is installed and the app communicates over HTTPS with servers, since version 1.0 does not validate SSL certificates.

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

Implement proper X.509 certificate validation in the application, including certificate chain verification, hostname validation, and checking against the device's trusted CA store.

Fix this in Nesvarnik 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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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-2014-7109 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