Cisco IOS XE Web UI input validation

Summaryinfo

A vulnerability identified as critical has been detected in Cisco IOS XE. Impacted is an unknown function of the component Web UI. The manipulation leads to input validation. This vulnerability is listed as CVE-2019-1753. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Cisco IOS XE (Router Operating System) (affected version not known). It has been rated as critical. This issue affects some unknown functionality of the component Web UI. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated but unprivileged (level 1), remote attacker to run privileged Cisco IOS commands by using the web UI. The vulnerability is due to a failure to validate and sanitize input in Web Services Management Agent (WSMA) functions. An attacker could exploit this vulnerability by submitting a malicious payload to the affected device's web UI. A successful exploit could allow the lower-privileged attacker to execute arbitrary commands with higher privileges on the affected device.

The bug was discovered 03/27/2019. The weakness was presented 03/28/2019 as cisco-sa-20190327-iosxe-pe as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2019-1753 since 12/06/2018. The attack may be initiated remotely. A simple authentication is required for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/17/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316389 (Cisco IOS XE Software Privilege Escalation Vulnerability(cisco-sa-20190327-iosxe-pe)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-132536, VDB-132535, VDB-132534 and VDB-132530 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• IOS XE

License

• commercial

Website

• Vendor: https://www.cisco.com/

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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