CVE-2021-22879
First published: Wed Apr 14 2021(Updated: )
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.
Credit: support@hackerone.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nextcloud Desktop Client | <3.1.3 | |
| Fedoraproject Fedora | =33 |
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Reference Links
- https://github.com/nextcloud/desktop/pull/2906
- https://hackerone.com/reports/1078002
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MTWBJAS5DJJIK7LLVBZZQTSJASUVIRVE/
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-008
- https://security.gentoo.org/glsa/202105-37
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTWBJAS5DJJIK7LLVBZZQTSJASUVIRVE/
Frequently Asked Questions
What is CVE-2021-22879?
CVE-2021-22879 is a vulnerability in the Nextcloud Desktop Client prior to version 3.1.3 that allows a malicious server to execute remote commands by exploiting missing validation of URLs.
How does CVE-2021-22879 impact users?
CVE-2021-22879 can be exploited by a malicious server to execute remote commands on the affected Nextcloud Desktop Client, potentially leading to unauthorized access or data manipulation.
What is the severity of CVE-2021-22879?
CVE-2021-22879 has a severity rating of 8.8 (High) according to the CVSS (Common Vulnerability Scoring System).
Which software versions are affected by CVE-2021-22879?
Nextcloud Desktop Client versions up to exclusive version 3.1.3 are affected by CVE-2021-22879.
How can CVE-2021-22879 be fixed?
To fix CVE-2021-22879, users should update their Nextcloud Desktop Client to version 3.1.3 or later, which includes the necessary validation of URLs to prevent resource injection.
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- collector/mitre-cve
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- agent/remedy
- agent/last-modified-date
- agent/description
- agent/event
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- agent/source
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- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/nextcloud
- canonical/nextcloud desktop client
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/33