Vulnerability in Solarwinds N-Central
CVE-2020-15909
SolarWinds N-central through 2020.1 allows session hijacking and requires user interaction or physical access. The N-Central JSESSIONID cookie attribute is not checked against multiple sources such as sourceip, MFA claim, etc. as long as the victim stays logged in within N-Central. To take advantage of this, cookie could be stolen and the JSESSIONID can be captured. On its own this is not a surprising result; low security tools allow the cookie to roam from machine to machine. The JSESSION cookie can then be used on the attackers’ workstation by browsing to the victim’s NCentral server URL and replacing the JSESSIONID attribute value by the captured value. Expected behavior would be to check this against a second source and enforce at least a reauthentication or multi factor request as N-Central is a highly privileged service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.0% 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
Weakness classification (CWE)
References
- www.solarwindsmsp.com/products/n-central (Product, Vendor Advisory)
- limenetworks.nl/wp-content/uploads/CVE-934261-v-1.2.pdf (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-15909?
- CVE-2020-15909 is a high-severity vulnerability in Solarwinds N-Central, classified under Session Fixation. CVSS score: 8.8/10. Published 2020-10-19.
- How severe is CVE-2020-15909?
- High severity. CVSS v3 base score is 8.8 out of 10.