CVE-2018-17836 — An issue was discovered in JTBC(PHP) 3

An issue was discovered in JTBC(PHP) 3.0.1.6. It allows remote attackers to execute arbitrary PHP code by using a /console/file/manage.php?type=action&action=addfile&path=..%2F substring to upload, in conjunction with a multipart/form-data PHP payload.

01What is this vulnerability?

An issue was discovered in JTBC(PHP) 3.0.1.6. It allows remote attackers to execute arbitrary PHP code by using a /console/file/manage.php?type=action&action=addfile&path=..%2F substring to upload, in conjunction with a multipart/form-data PHP payload.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2018-10-01T08:00:00.000Z
• Last modified: 2024-08-05T10:54:10.784Z

09References

• github.com — https://github.com/AvaterXXX/JTBC/blob/master/README.md#getshell