VDB-173098 · CVE-2021-30487 · GCVE-0-2021-30487

Zulip Server up to 3.3 Topic Moving API permission assignment

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Zulip Server up to 3.3. This affects an unknown part of the component Topic Moving API. Executing a manipulation can lead to an unknown weakness. This vulnerability appears as CVE-2021-30487. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Zulip Server up to 3.3. This vulnerability affects some unknown functionality of the component Topic Moving API. The CWE definition for the vulnerability is CWE-732. The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. As an impact it is known to affect integrity, and availability.

The weakness was presented 04/15/2021. The advisory is available at blog.zulip.com. This vulnerability was named CVE-2021-30487. The technical details are unknown and an exploit is not available.

Upgrading to version 3.4 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Zulip

Name

Server

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 2.7
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Permission assignment
CWE: CWE-732 / CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Server 3.4

Timelineinfo

04/10/2021 🔍
04/15/2021 +5 days 🔍
04/15/2021 +0 days 🔍
04/21/2021 +6 days 🔍

Sourcesinfo

Advisory: blog.zulip.com
Status: Confirmed

CVE: CVE-2021-30487 (🔍)
GCVE (CVE): GCVE-0-2021-30487
GCVE (VulDB): GCVE-100-173098

Entryinfo

Created: 04/15/2021 12:03
Updated: 04/21/2021 12:21
Changes: 04/15/2021 12:03 (36), 04/21/2021 12:17 (5), 04/21/2021 12:21 (20)
Complete: 🔍
Cache ID: 216::103