CVEs / CVE-2019-16278
CVE-2019-16278: Nostromo nhttpd Directory Traversal Vulnerability
- Known exploited in the CISA KEV catalog since 7 Nov 2024
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 99% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Nostromo nhttpd contains a directory traversal vulnerability in the http_verify() function in a non-chrooted nhttpd server allowing for remote code execution.
Description
Directory Traversal in the function http_verify in nostromo nhttpd through 1.9.6 allows an attacker to achieve remote code execution via a crafted HTTP request.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
| nazgul nostromo_nhttpd | up to and including 1.9.6 | — |
Exploitation
| In CISA KEV since | 7 Nov 2024 |
|---|---|
| Due date for US federal agencies | 28 Nov 2024 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-22 |
References
- CVE-2019-16278 on NVD
- CVE-2019-16278 in the CISA KEV catalog
- https://www.nazgul.ch/dev/nostromo_cl.txt (cited by CISA)
- http://packetstormsecurity.com/files/155045/Nostromo-1.9.6-Directory-Traversal-Remote-Command-Execution.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/155802/nostromo-1.9.6-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- http://www.nazgul.ch/dev/nostromo_cl.txt Release Notes
- https://git.sp0re.sh/sp0re/Nhttpd-exploits Broken Link, Exploit, Third Party Advisory
- https://sp0re.sh Broken Link, Not Applicable
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16278 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.