CVE-2017-16720 — A Path Traversal issue was discovered in WebAccess versions 8

A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has access to files within the directory structure of the target device.

01What is this vulnerability?

A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has access to files within the directory structure of the target device.

02Affected products

Vendor	Product	Versions
n	a / Advantech WebAccess	Advantech WebAccess

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: 2018-01-05T08:00:00.000Z
• Last modified: 2024-08-05T20:35:20.912Z

09References

• www.exploit-db.com — https://www.exploit-db.com/exploits/44278/
• www.securityfocus.com — http://www.securityfocus.com/bid/102424
• ics-cert.us-cert.gov — https://ics-cert.us-cert.gov/advisories/ICSA-18-004-02
• www.tenable.com — https://www.tenable.com/security/research/tra-2018-23