CVE-2018-4993 — Adobe Acrobat and Reader versions 2018

Adobe Acrobat and Reader versions 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier have an NTLM SSO hash theft vulnerability. Successful exploitation could lead to information disclosure.

01What is this vulnerability?

Adobe Acrobat and Reader versions 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier have an NTLM SSO hash theft vulnerability. Successful exploitation could lead to information disclosure.

02Affected products

Vendor	Product	Versions
n	a / Adobe Acrobat and Reader 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier versions	Adobe Acrobat and Reader 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier versions

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: 2018-07-09T19:00:00.000Z
• Last modified: 2024-08-05T05:18:27.105Z

09References

• helpx.adobe.com — https://helpx.adobe.com/security/products/acrobat/apsb18-09.html
• www.securitytracker.com — http://www.securitytracker.com/id/1040920
• www.securityfocus.com — http://www.securityfocus.com/bid/104177