PT-2019-10007 · Zextras · Zxchat

Published 2019-05-29 · Updated 2019-05-30 · CVE-2018-20160

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: ZxChat (aka ZeXtras Chat) versions 8.7 through 8.8

Description: The issue allows XXE (XML External Entity) attacks. This can be demonstrated by sending a crafted XML request to the mailboxd endpoint.

Recommendations: For versions 8.7 through 8.8, consider restricting access to the mailboxd endpoint to minimize the risk of exploitation. As a temporary workaround, avoid using potentially vulnerable XML requests until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XXE

Weakness Enumeration

CWE-611

Related Identifiers

CVE-2018-20160

Affected Products

Zxchat

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2018-20160 · Security Note
• https://wiki.zimbra.com/wiki/Security_Center · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-20160 · Vendor Advisory
• https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20160 · Note
• https://bugzilla.zimbra.com/show_bug.cgi?id=109093 · Note