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GitHub_MCVE-2021-32703

HistoryJul 12, 2021 - 4:15 p.m.

CVE-2021-32703

2021-07-1216:15:09

CWE-307

CWE-799

GitHub_M

web.nvd.nist.gov

117

nextcloud

server

cve-2021-32703

nextcloud package

data storage

security

vulnerability

ratelimiting

shareinfo

enumeration

share tokens

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

AI Score

6.3

Confidence

High

EPSS

0.002

Percentile

56.3%

JSON

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.

Affected configurations

Nvd

Vulners

Node

nextcloudnextcloud_serverRange<19.0.13

nextcloudnextcloud_serverRange20.0.0–20.0.11

nextcloudnextcloud_serverRange21.0.0–21.0.3

Node

fedoraprojectfedoraMatch33

fedoraprojectfedoraMatch34

VendorProductVersionCPE
nextcloudnextcloud_server*cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
fedoraprojectfedora34cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
nextcloud	nextcloud_server	*	cpe:2.3:a:nextcloud:nextcloud_server::::::::
fedoraproject	fedora	33	cpe:2.3:o:fedoraproject:fedora:33:::::::*
fedoraproject	fedora	34	cpe:2.3:o:fedoraproject:fedora:34:::::::*

CNA Affected

[
  {
    "product": "security-advisories",
    "vendor": "nextcloud",
    "versions": [
      {
        "status": "affected",
        "version": "< 19.0.13"
      },
      {
        "status": "affected",
        "version": ">= 20.0.0, < 20.0.11"
      },
      {
        "status": "affected",
        "version": ">= 21.0.0, < 21.0.3"
      }
    ]
  }
]