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hackeroneDemoniaH1:1018146
HistoryOct 25, 2020 - 4:00 a.m.

Nextcloud: Potential DDoS when posting long data into workflow validation rules

2020-10-2504:00:29
demonia
hackerone.com
50

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

33.4%

JSON

A missing input validation in Nextcloud Server 20.0.1 allowed users to store unlimited data in workflow rules causing load and potential DDoS on later interactions and usage with those rules.

Related

nextcloud 1
prion 1
cve 1
osv 1
openvas 3
suse 3
nessus 2
nextcloud
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Potential DDoS when posting long data into workflow validation rules (NC-SA-2021-001)
2020-11-18 00:00:00
prion
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Input validation
2021-01-26 18:16:00
cve
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CVE-2020-8293
2021-01-26 18:16:00
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CVE-2020-8293
2021-01-26 18:16:08
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Nextcloud Server Multiple Vulnerabilities (NC-SA-2021-001, NC-SA-2021-002)
2021-01-28 00:00:00
openSUSE: Security Advisory for nextcloud (openSUSE-SU-2021:0262-1)
2021-04-16 00:00:00
openSUSE: Security Advisory for nextcloud (openSUSE-SU-2021:1068-1)
2021-07-21 00:00:00
suse
suse
Security update for nextcloud (moderate)
2021-02-08 00:00:00
Security update for nextcloud (moderate)
2021-02-11 00:00:00
Security update for nextcloud (important)
2021-07-21 00:00:00
nessus
nessus
openSUSE Security Update : nextcloud (openSUSE-2021-262)
2021-02-09 00:00:00
openSUSE 15 Security Update : nextcloud (openSUSE-SU-2021:1068-1)
2021-07-21 00:00:00

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

33.4%

JSON
Related for H1:1018146
nextcloud1prion1cve1osv1openvas3suse3nessus2