Lucene search

MitreCVE-2021-30479

HistoryApr 15, 2021 - 12:15 a.m.

CVE-2021-30479

2021-04-1500:15:13

CWE-269

mitre

web.nvd.nist.gov

cve-2021-30479

zulip server

information security

bug

api

guest users

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

5.3

Confidence

High

EPSS

0.001

Percentile

35.9%

JSON

An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the all_public_streams API feature resulted in guest users being able to receive message traffic to public streams that should have been only accessible to members of the organization.

Affected configurations

Nvd

Node

zulipzulip_serverRange<3.4

VendorProductVersionCPE
zulipzulip_server*cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
zulip	zulip_server	*	cpe:2.3:a:zulip:zulip_server::::::::

References

blog.zulip.com/2021/04/14/zulip-server-3-4/

Social References

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

5.3

Confidence

High

EPSS

0.001

Percentile

35.9%

JSON

Related for CVE-2021-30479