Security readout for executives and security teams
Plain-English summary
Older Ichiran mobile apps did not properly check server certificates. A person able to position themselves between the app and its servers could read encrypted communications. This is mainly a user privacy risk, not a server takeover issue, and the public sources do not show active exploitation.
Executive priority
Treat this as a moderate mobile privacy issue. Prioritize updating or removing affected app versions on managed devices, especially for users who regularly connect through public or untrusted networks.
Technical view
CVE-2023-22367 is CWE-295 improper certificate verification in Ichiran App for iOS and Android before 3.1.0. CVSS 3.1 is 5.9 with network attack vector, high complexity, no privileges, no user interaction, unchanged scope, high confidentiality impact, and no integrity or availability impact.
Likely exposure
Exposure is limited to devices running Ichiran App for iOS or Android versions earlier than 3.1.0. Enterprise impact is likely confined to managed or BYOD mobile devices where the app is installed and traffic confidentiality matters.
Exploitation context
The described attack requires a man-in-the-middle position against app communications. The CVE is not listed as KEV in the provided bundle, and no cited source states active exploitation. High attack complexity lowers broad exploitation likelihood.
Researcher notes
The public record identifies improper server certificate verification but does not provide implementation details, affected endpoints, or exploit evidence. Avoid assuming broader Betrend or Ichiran platform exposure beyond the named iOS and Android apps before 3.1.0.
Mitigation direction
- Update Ichiran App on iOS and Android to version 3.1.0 or later.
- Check vendor or app store guidance for any additional remediation instructions.
- Use MDM or mobile inventory to identify outdated installs.
- Encourage users to avoid untrusted networks until updated.
- Remove the app from managed devices if updates cannot be verified.
Validation and detection
- Confirm installed app versions are 3.1.0 or later on managed devices.
- Review MDM, Apple App Store, or Google Play inventory records.
- Check whether the app exists in approved enterprise app catalogs.
- Document any users or device groups still running affected versions.
- Monitor vendor advisories for revised affected-version or remediation details.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-295: Exact CWE lookup
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Open ATT&CK lookupCVE-2023-22367 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Certificate Validation
Improper Certificate Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.