CVE intelligence and bounded remediation
CVE-2020-26074 — Cisco Catalyst Sd-Wan Manager security vulnerability
A vulnerability in system file transfer functions of Cisco SD-WAN vManage Software could allow an authenticated, local attacker to gain escalated privileges on the underlying operating system. The vulnerability is due to improper validation of path input to the system file transfer functions. An attacker could exploit this vulnerability by sending requests that contain specially crafted path variables to the vulnerable system. A successful exploit could allow the attacker to overwrite arbitrary files, allowing the attacker to modify the system in such a way that could allow the attacker to gain escalated privileges.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
- Severity
- High
- CVSS
- 7.8 (3.1)
- Published
- 2024-11-18
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-250
Affected products
- cisco / catalyst_sd-wan_manager / 17.2.4
- cisco / catalyst_sd-wan_manager / 17.2.5
- cisco / catalyst_sd-wan_manager / 17.2.6
- cisco / catalyst_sd-wan_manager / 17.2.7
- cisco / catalyst_sd-wan_manager / 17.2.8
- cisco / catalyst_sd-wan_manager / 17.2.9
Showing 6 representative product identities from 46 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.
Matched remediation archetype
Privilege escalation and unsafe privilege management
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
- Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
- Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.
Remediate safely
- Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
- Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
- Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.
Authoritative sources
Complete CVE record and remediation plan
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