PT-2021-1572 · Cisco · Cisco Small Business Rv130+3

Kai Cheng · Published 2021-01-13 · Updated 2021-01-19 · CVE-2021-1176

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers (affected versions not specified)

Description: The issue is related to improper validation of user-supplied input in the web-based management interface, which could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly. This is also due to a buffer overflow on the stack. An attacker could exploit this by sending crafted HTTP requests to an affected device, potentially allowing the execution of arbitrary code as the root user on the underlying operating system or causing the device to reload, resulting in a denial of service (DoS) condition. The attacker would need valid administrator credentials on the affected device to exploit this issue.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

BDU:2021-00186

CVE-2021-1176

Affected Products

Cisco Small Business Rv110W

Cisco Small Business Rv130

Cisco Small Business Rv130W

Cisco Small Business Rv215W

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-1176 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1176 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-WUnUgv4U · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00186 · Security Note