PT-2020-2882 · Cisco · Cisco Small Business Rv042+4
Published
2020-06-17
·
Updated
2021-08-06
·
CVE-2020-3289
CVSS v2.0
9.0
High
| Vector | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Cisco Small Business RV320 versions not specified
Cisco Small Business RV325 versions not specified
Cisco Small Business RV016 versions not specified
Cisco Small Business RV042 versions not specified
Cisco Small Business RV082 versions not specified
Description
The issue is caused by insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface, allowing an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device. This can be achieved by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system.
Recommendations
For Cisco Small Business RV320, update to a version that fixes the issue.
For Cisco Small Business RV325, update to a version that fixes the issue.
For Cisco Small Business RV016, update to a version that fixes the issue.
For Cisco Small Business RV042, update to a version that fixes the issue.
For Cisco Small Business RV082, update to a version that fixes the issue.
As a temporary workaround, consider restricting access to the web-based management interface to minimize the risk of exploitation.
Fix
Buffer Overflow
Memory Corruption
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Related Identifiers
Affected Products
Cisco Small Business Rv016
Cisco Small Business Rv042
Cisco Small Business Rv082
Cisco Small Business Rv320
Cisco Small Business Rv325