Resource exhaustion in Secure-Endpoints Kerberised Netcat
CVE-2017-9732
The read_packet function in knc (Kerberised NetCat) before 1.11-1 is vulnerable to denial of service (memory exhaustion) that can be exploited remotely without authentication, possibly affecting another services running on the targeted host.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.040 (90.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1 (Patch, Third Party Advisory)
- seclists.org/fulldisclosure/2018/Nov/65 (mailing-list, Exploit, Patch, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.ht… (Exploit, Patch, VDB Entry, Third Party Advisory)
- github.com/irsl/knc-memory-exhaustion/ (Exploit, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-9732?
- CVE-2017-9732 is a high-severity vulnerability in Secure-Endpoints Kerberised Netcat, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2018-12-20.
- How severe is CVE-2017-9732?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-9732 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.