Vulnerability in Cisco iOS And Xe Software
CVE-2019-1757
A vulnerability in the Cisco Smart Call Home feature of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data using an invalid certificate. The vulnerability is due to insufficient certificate validation by the affected software. An attacker could exploit this vulnerability by supplying a crafted certificate to an affected device. A successful exploit could allow the attacker to conduct man-in-the-middle attacks to decrypt confidential information on user connections to the affected software.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.011 (63.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Cisco iOS And Xe Software — versions 3.6.4E, 3.6.5E, 3.6.6E
- Cisco iOS — versions 15.2(3)ea1, 15.2\(4\)ea9, 15.2\(4s\)e2
- Cisco iOS Xe — versions 3.6.4e, 3.6.5ae, 3.6.5be
Weakness classification (CWE)
Public proof-of-concept exploits
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327… (vendor-advisory, Vendor Advisory)
- www.securityfocus.com/bid/107617 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2019-1757?
- CVE-2019-1757 is a medium-severity vulnerability in Cisco iOS And Xe Software, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2019-03-28.
- How severe is CVE-2019-1757?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2019-1757 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.