CVE-2023-39957

Summary

Nextcloud Talk Android allows users to place video and audio calls through Nextcloud on Android. Prior to version 17.0.0, an unprotected intend allowed malicious third party apps to trick the Talk Android app into writing files outside of its intended cache directory. Nextcloud Talk Android version 17.0.0 has a patch for this issue. No known workarounds are available.

Affected Software

Weaknesses

• CWE-22: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-36f7-93f3-mcfj
• https://github.com/nextcloud/talk-android/pull/3064
• https://hackerone.com/reports/1997029

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-36f7-93f3-mcfj
• https://github.com/nextcloud/talk-android/pull/3064
• https://hackerone.com/reports/1997029

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