CVE-2020-3503 — Improper Access Control in Cisco IOS XE Software

CWE-284 — Improper Access ControlCWE-732 — Incorrect Permission Assignment4 documents4 sources
Severity
6.0MEDIUMNVD
EPSS
0.1%
top 67.50%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco IOS XE SoftwareCisco IOS XE
Timeline
PublishedSep 24
Latest updateMay 24

Description

A vulnerability in the file system permissions of Cisco IOS XE Software could allow an authenticated, local attacker to obtain read and write access to critical configuration or system files. The vulnerability is due to insufficient file system permissions on an affected device. An attacker could exploit this vulnerability by connecting to an affected device's guest shell, and accessing or modifying restricted files. A successful exploit could allow the attacker to view or modify restricted info…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NExploitability: 0.8 | Impact: 5.2

Affected Packages2 packages

▶NVDcisco/ios_xe16.12.1

🔴Vulnerability Details

2
GHSA
GHSA-328f-6h62-x2vm: A vulnerability in the file system permissions of Cisco IOS XE Software could allow an authenticated, local attacker to obtain read and write access t↗2022-05-24
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CVEList
Cisco IOS XE Software Guest Shell Unauthorized File System Access Vulnerability↗2020-09-24
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📋Vendor Advisories

1
Cisco
Cisco IOS XE Software Guest Shell Unauthorized File System Access Vulnerability↗2020-09-24
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CVE-2020-3503 — Improper Access Control in Cisco | cvebase