Security readout for executives and security teams
Plain-English summary
CVE-2017-8941 is a TLS certificate validation flaw in Interval International for iOS versions 3.3 through 3.5.1. An attacker positioned between the phone and service could impersonate the server and view sensitive app traffic. Public metadata does not provide CVSS scoring or a vendor fix.
Executive priority
Treat this as a targeted legacy mobile-app exposure. It is not known to be actively exploited, but affected users could have sensitive data exposed on intercepted networks. Prioritize inventory, upgrade or removal, and confirmation of vendor guidance.
Technical view
The affected iOS app does not verify X.509 certificates from SSL servers. This breaks server authentication and can allow man-in-the-middle spoofing with a crafted certificate. The CVE record names Interval International app versions 3.3 through 3.5.1, but lacks CPEs, CWE mapping, CVSS, and remediation details.
Likely exposure
Exposure is limited to users or managed devices running Interval International iOS app versions 3.3 through 3.5.1. Risk is higher when the app is used on untrusted networks or where an attacker can intercept traffic.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. The reported attack requires a network interception position and abuse of the app's missing certificate verification.
Researcher notes
Evidence is sparse. The public CVE description identifies the vulnerable app versions and class of flaw, while the reference article is the only linked technical source. No official fix, affected CPE, CVSS score, or exploitation telemetry is included in the provided bundle.
Mitigation direction
- Check Interval International or app store guidance for fixed versions.
- Update the iOS app if a fixed release is available.
- Remove or block affected versions from managed devices.
- Avoid using affected versions on untrusted networks.
- Review whether sensitive credentials or account data were used in affected versions.
Validation and detection
- Inventory mobile devices for Interval International app versions 3.3 through 3.5.1.
- Confirm whether newer installed versions still rely on proper TLS certificate validation.
- Review MDM and app store records for historical exposure.
- Run only authorized mobile security testing to verify certificate validation behavior.
- Check available vendor advisories before declaring remediation complete.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2017-8941 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://medium.com/%40chronic_9612/follow-up-76-popular-apps-confirmed-vulnerable-to-silent-interception-of-tls-protected-data-64185035029fCVE reference · x_refsource_MISC
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.