CVE-2021-32703 — Improper Control of Interaction Frequency in Security-advisories

CWE-799 — Improper Control of Interaction FrequencyCWE-307 — Improper Restriction of Excessive Authentication Attempts2 documents2 sources
Severity
5.3MEDIUMNVD
EPSS
0.6%
top 31.85%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Nextcloud Security-advisoriesNextcloud ServerFedoraproject Fedora
Timeline
PublishedJul 12

Description

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the shareinfo endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages2 packages

▶NVDnextcloud/nextcloud_server20.0.0 — 20.0.11+2
▶CVEListV5nextcloud/security-advisories< 19.0.13+2

Also affects: Fedora 33, 34

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

1
CVEList
Lack of ratelimit on shareinfo endpoint↗2021-07-12
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CVE-2021-32703 — Security-advisories vulnerability | cvebase