NULL pointer dereference in Embedthis Appweb
CVE-2018-15505
An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. An HTTP POST request with a specially crafted "Host" header field may cause a NULL pointer dereference and thus cause a denial of service, as demonstrated by the lack of a trailing ']' character in an IPv6 address.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Embedthis Appweb
- Embedthis Goahead
- Juniper Junos — versions 12.3, 12.3x48, 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/embedthis/appweb/issues/605 (Exploit, Patch, Third Party Advisory, Issue Tracking, Broken Link)
- github.com/embedthis/goahead/issues/264 (Exploit, Patch, Third Party Advisory, Issue Tracking, Broken Link)
- github.com/embedthis/appweb/commit/16e6979c82297d5fc4f8661e7ada975f51e4dfa9 (Patch, Third Party Advisory)
- supportportal.juniper.net/s/article/2021-07-Security-Bulletin-Junos-OS-Multiple… (Not Applicable)
Frequently asked questions
- What is CVE-2018-15505?
- CVE-2018-15505 is a high-severity vulnerability in Embedthis Appweb, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2018-08-18.
- How severe is CVE-2018-15505?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-15505 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.