Cisco Small Business RV110W Request buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Cisco Small Business RV110W, Small Business RV130, Small Business RV130W and Small Business RV215W. This vulnerability affects unknown code of the component Request Handler. The manipulation leads to buffer overflow. This vulnerability is uniquely identified as CVE-2022-20879. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Small Business RV110W, Small Business RV130, Small Business RV130W and Small Business RV215W (affected version not known) and classified as critical. This issue affects some unknown functionality of the component Request Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is 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 disclosed 07/21/2022 as cisco-sa-sb-rv-rce-overflow-ygHByAK. It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2022-20879 since 11/02/2021. The technical details are unknown and an exploit is not publicly available.

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 7.2
NVD Vector: 🔍

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

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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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 🔍
08/15/2022 +25 days 🔍

Sourcesinfo

Vendor: cisco.com

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

CVE: CVE-2022-20879 (🔍)
GCVE (CVE): GCVE-0-2022-20879
GCVE (VulDB): GCVE-100-204647

Entryinfo

Created: 07/21/2022 07:50
Updated: 08/15/2022 15:25
Changes: 07/21/2022 07:50 (49), 08/15/2022 15:25 (11)
Complete: 🔍
Cache ID: 216::103

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