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Critical severity · published May 29, 2019
CVE-2019-9670
Synacor Zimbra Collaboration Suite (ZCS) Improper Restriction of XML External Entity Reference
In wildKEV
9.8
CVSS
100%
EPSS
Yes
On KEV
Description
mailboxd component in Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 has an XML External Entity injection (XXE) vulnerability, as demonstrated by Autodiscover/Autodiscover.xml.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)100.0% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Jan 10, 2022
Federal remediation dueJul 10, 2022
Ransomware campaign useNot known
Affected products
Which versions
ZC
Zimbra Collaboration Suite · Synacor
8.7.0 before 8.7.11; 8.7.11; 8.7.11; 8.7.11; 8.7.11; 8.7.11; +5 more · source: NVD
ZC
Zimbra Collaboration Suite (ZCS) · Synacor
All versions, or not specified · source: KEV
Affected product
ZC
Zimbra Collaboration Suite
Synacor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-9670
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-9670
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
x_refsource_MISC
https://bugzilla.zimbra.com/show_bug.cgi?id=109129
x_refsource_MISC
http://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce
x_refsource_MISC
http://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.html
exploit
https://www.exploit-db.com/exploits/46693/
x_refsource_MISC
https://isc.sans.edu/forums/diary/CVE20199670+Zimbra+Collaboration+Suite+XXE+vulnerability/27570/
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