Vulnerability Details : CVE-2019-15956
A vulnerability in the web management interface of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to perform an unauthorized system reset on an affected device. The vulnerability is due to improper authorization controls for a specific URL in the web management interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could have a twofold impact: the attacker could either change the administrator password, gaining privileged access, or reset the network configuration details, causing a denial of service (DoS) condition. In both scenarios, manual intervention is required to restore normal operations.
Vulnerability category: BypassGain privilegeDenial of service
Products affected by CVE-2019-15956
- cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:web_security_appliance:10.5.2-072:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:web_security_appliance:11.5.1-fcs-125:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:web_security_appliance:11.7.0-fcs-418:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-15956
0.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 52 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-15956
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
Cisco Systems, Inc. | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2019-15956
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: ykramarz@cisco.com (Secondary)
References for CVE-2019-15956
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191106-wsa-unauth-devreset
Cisco Web Security Appliance Unauthorized Device Reset VulnerabilityVendor Advisory
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