High severity · published Oct 19, 2020
CVE-2020-15909
SolarWinds N-central through 2020.1 allows session hijacking and requires user interaction or physical access
8.8
CVSS
2.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NC
N-central · Solarwinds
through 2020.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15909
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-15909
Exploit
https://limenetworks.nl/wp-content/uploads/CVE-934261-v-1.2.pdf
Product
https://www.solarwindsmsp.com/products/n-central
More from N-central
8.8
CVE-2020-25622
An issue was discovered in SolarWinds N-Central 12.3.0.670
8.8
CVE-2020-25618
An issue was discovered in SolarWinds N-Central 12.3.0.670
8.8
CVE-2020-25617
An issue was discovered in SolarWinds N-Central 12.3.0.670
8.4
CVE-2020-25621
An issue was discovered in SolarWinds N-Central 12.3.0.670
7.8
CVE-2020-25620
An issue was discovered in SolarWinds N-Central 12.3.0.670
