CVE-2019-9883 — Multi modules of MailSherlock MSR35 and MSR45 lead to a CSRF vulnerability

Multi modules of MailSherlock MSR35 and MSR45 lead to a CSRF vulnerability. It allows attacker to elevate privilege of specific account via useradmin/cf_new.cgi?chief=&wk_group=full&cf_name=test&cf_account=test&cf_email=&cf_acl=Management&apply_lang=&d

01What is this vulnerability?

Multi modules of MailSherlock MSR35 and MSR45 lead to a CSRF vulnerability. It allows attacker to elevate privilege of specific account via useradmin/cf_new.cgi?chief=&wk_group=full&cf_name=test&cf_account=test&cf_email=&cf_acl=Management&apply_lang=&dn= without any authorizes.

02Affected products

Vendor	Product	Versions
OAKlouds	MailSherlock MSR35	iSherlock-base, iSherlock-useradmin, iSherlock-sysinfo, iSherlock-user
OAKlouds	MailSherlock MSR45	iSherlock-base, iSherlock-useradmin, iSherlock-sysinfo, iSherlock-user

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-06-03T18:03:21.000Z
• Last modified: 2024-08-04T22:01:54.986Z

09References

• tvn.twcert.org.tw — https://tvn.twcert.org.tw/taiwanvn/TVN-201904003
• surl.twcert.org.tw — http://surl.twcert.org.tw/mChNi