diff --git a/2021/32xxx/CVE-2021-32727.json b/2021/32xxx/CVE-2021-32727.json index ba64a8008b8..58509684af8 100644 --- a/2021/32xxx/CVE-2021-32727.json +++ b/2021/32xxx/CVE-2021-32727.json @@ -1,18 +1,98 @@ { - "data_type": "CVE", - "data_format": "MITRE", - "data_version": "4.0", "CVE_data_meta": { + "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-32727", - "ASSIGNER": "cve@mitre.org", - "STATE": "RESERVED" + "STATE": "PUBLIC", + "TITLE": "End-to-end encryption device setup did not verify public key" }, + "affects": { + "vendor": { + "vendor_data": [ + { + "product": { + "product_data": [ + { + "product_name": "security-advisories", + "version": { + "version_data": [ + { + "version_value": "< 3.16.1" + } + ] + } + } + ] + }, + "vendor_name": "nextcloud" + } + ] + } + }, + "data_format": "MITRE", + "data_type": "CVE", + "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", - "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided." + "value": "Nextcloud Android Client is the Android client for Nextcloud. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.16.1, the Nextcloud Android client skipped a step that involved the client checking if a private key belonged to a previously downloaded public certificate. If the Nextcloud instance served a malicious public key, the data would be encrypted for this key and thus could be accessible to a malicious actor. The vulnerability is patched in version 3.16.1. As a workaround, do not add additional end-to-end encrypted devices to a user account." } ] + }, + "impact": { + "cvss": { + "attackComplexity": "LOW", + "attackVector": "NETWORK", + "availabilityImpact": "NONE", + "baseScore": 5.7, + "baseSeverity": "MEDIUM", + "confidentialityImpact": "HIGH", + "integrityImpact": "NONE", + "privilegesRequired": "LOW", + "scope": "UNCHANGED", + "userInteraction": "REQUIRED", + "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N", + "version": "3.1" + } + }, + "problemtype": { + "problemtype_data": [ + { + "description": [ + { + "lang": "eng", + "value": "CWE-295: Improper Certificate Validation" + } + ] + } + ] + }, + "references": { + "reference_data": [ + { + "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5v33-r9cm-7736", + "refsource": "CONFIRM", + "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5v33-r9cm-7736" + }, + { + "name": "https://github.com/nextcloud/android/pull/8438", + "refsource": "MISC", + "url": "https://github.com/nextcloud/android/pull/8438" + }, + { + "name": "https://hackerone.com/reports/1189162", + "refsource": "MISC", + "url": "https://hackerone.com/reports/1189162" + }, + { + "name": "https://github.com/nextcloud/end_to_end_encryption_rfc/blob/7f002996397faefb664019a97ebb0a1e210f64f0/RFC.md#further-devices", + "refsource": "MISC", + "url": "https://github.com/nextcloud/end_to_end_encryption_rfc/blob/7f002996397faefb664019a97ebb0a1e210f64f0/RFC.md#further-devices" + } + ] + }, + "source": { + "advisory": "GHSA-5v33-r9cm-7736", + "discovery": "UNKNOWN" } } \ No newline at end of file