#VU46084 Improper Neutralization of Special Elements in Output Used by a Downstream Component in Zulip Server


Published: 2020-08-21 | Updated: 2020-08-26

Vulnerability identifier: #VU46084

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-15070

CWE-ID: CWE-74

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Zulip Server
Web applications / Other software

Vendor: Zulip

Description

The vulnerability allows a remote authenticated user to execute arbitrary code.

Zulip Server 2.x before 2.1.7 allows eval injection if a privileged attacker were able to write directly to the postgres database, and chose to write a crafted custom profile field value.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Zulip Server: 2.1.0 - 2.1.6


External links
http://blog.zulip.com/2020/06/26/zulip-server-2-1-7-security-release/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability