Improper input validation in Cisco iOS Xe Software
CVE-2019-1862
A vulnerability in the web-based user interface (Web UI) of Cisco IOS XE Software could allow an authenticated, remote attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability occurs because the affected software improperly sanitizes user-supplied input. An attacker who has valid administrator access to an affected device could exploit this vulnerability by supplying a crafted input parameter on a form in the Web UI and then submitting that form. A successful exploit could allow the attacker to run arbitrary commands on the device with root privileges, which may lead to complete system compromise.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.055 (92.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Ios Xe Software — versions 3.2.0JA
- Cisco Ios_xe — versions 16.3.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
- psirt@cisco.com (x_refsource_CERT-VN, third-party-advisory)
- psirt@cisco.com (vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2019-1862?
- CVE-2019-1862 is a high-severity vulnerability in Cisco iOS Xe Software, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2019-05-13.
- How severe is CVE-2019-1862?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2019-1862 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.