Auth bypass in Cisco Wide Area Application Services (Waas)
CVE-2019-1876
A vulnerability in the HTTPS proxy feature of Cisco Wide Area Application Services (WAAS) Software could allow an unauthenticated, remote attacker to use the Central Manager as an HTTPS proxy. The vulnerability is due to insufficient authentication of proxy connection requests. An attacker could exploit this vulnerability by sending a malicious HTTPS CONNECT message to the Central Manager. A successful exploit could allow the attacker to access public internet resources that would normally be blocked by corporate policies.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.018 (77.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Cisco Wide Area Application Services (Waas) — versions unspecified
- Cisco Wide Area Application Services — versions 6.1\(1\), 6.4(3b), 6.4\(3b\)
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619… (vendor-advisory, Vendor Advisory)
- www.securityfocus.com/bid/108863 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2019-1876?
- CVE-2019-1876 is a medium-severity vulnerability in Cisco Wide Area Application Services (Waas), classified under Missing Authentication for Critical Function. CVSS score: 4.0/10. Published 2019-06-20.
- How severe is CVE-2019-1876?
- Medium severity. CVSS v3 base score is 4.0 out of 10.