Auth bypass in Embedthis Appweb
CVE-2018-8715
The Embedthis HTTP library, and Appweb versions before 7.0.3, have a logic flaw related to the authCondition function in http/httpLib.c. With a forged HTTP request, it is possible to bypass authentication for the form and digest login types.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.228 (97.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.228 · newest: 0.228 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/embedthis/appweb/issues/610 (Patch, Third Party Advisory)
- blogs.securiteam.com/index.php/archives/3676 (Exploit, Third Party Advisory)
- security.paloaltonetworks.com/CVE-2018-8715
Frequently asked questions
- What is CVE-2018-8715?
- CVE-2018-8715 is a high-severity vulnerability in Embedthis Appweb, classified under Improper Authentication. CVSS score: 8.1/10. Published 2018-03-15.
- How severe is CVE-2018-8715?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2018-8715 known to be exploited?
- 21 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.