VulnerabilityModified
CVE-2021-22879
Nextcloud Desktop Client prior to 3.1.3 is vulnerable to resource injection by way of missing validation of URLs, allowing a malicious server to execute remote commands.
HIGH 8.8EPSS 4.70%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Nextcloud Desktop Client prior to 3.1.3 is vulnerable to resource injection by way of missing validation of URLs, allowing a malicious server to execute remote commands. User interaction is needed for exploitation.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 4.70% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-99, CWE-74
- Affected
- nextcloud/desktop · fedoraproject/fedora
- Source
- support@hackerone.com
References
- https://github.com/nextcloud/desktop/pull/2906Patch, Third Party Advisory
- https://hackerone.com/reports/1078002Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTWBJAS5DJJIK7LLVBZZQTSJASUVIRVE/
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-008Vendor Advisory
- https://security.gentoo.org/glsa/202105-37Third Party Advisory
- https://github.com/nextcloud/desktop/pull/2906Patch, Third Party Advisory
- https://hackerone.com/reports/1078002Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTWBJAS5DJJIK7LLVBZZQTSJASUVIRVE/
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-008Vendor Advisory
- https://security.gentoo.org/glsa/202105-37Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.