VDB-204775 · CVE-2022-20888 · GCVE-0-2022-20888

Cisco Small Business RV110W Web-based Management Interface buffer overflow

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4.6	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Cisco Small Business RV110W, Small Business RV130, Small Business RV130W and Small Business RV215W. Affected is an unknown function of the component Web-based Management Interface. This manipulation causes buffer overflow. This vulnerability is registered as CVE-2022-20888. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Small Business RV110W, Small Business RV130, Small Business RV130W and Small Business RV215W (the affected version is unknown). It has been declared as critical. Affected by this vulnerability is an unknown code of the component Web-based Management Interface. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device or cause the device to restart unexpectedly, resulting in a denial of service (DoS) condition. These vulnerabilities are due to insufficient validation of user fields within incoming HTTP packets. An attacker could exploit these vulnerabilities by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to execute arbitrary commands on an affected device with root-level privileges or to cause the device to restart unexpectedly, resulting in a DoS condition. To exploit these vulnerabilities, an attacker would need to have valid Administrator credentials on the affected device. Cisco has not released software updates that address these vulnerabilities.

The weakness was published 07/21/2022 as cisco-sa-sb-rv-rce-overflow-ygHByAK. It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2022-20888 since 11/02/2021. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Cisco

Name

License

commercial

Website

Vendor: https://www.cisco.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.7
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/02/2021 🔍
07/21/2022 +260 days 🔍
07/21/2022 +0 days 🔍
07/21/2022 +0 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-sb-rv-rce-overflow-ygHByAK
Status: Confirmed

CVE: CVE-2022-20888 (🔍)
GCVE (CVE): GCVE-0-2022-20888
GCVE (VulDB): GCVE-100-204775

Entryinfo

Created: 07/21/2022 19:25
Changes: 07/21/2022 19:25 (49)
Complete: 🔍
Cache ID: 216::103