Cisco SD-WAN Solution access control

Summaryinfo

A vulnerability classified as critical has been found in Cisco SD-WAN Solution. Affected by this issue is some unknown functionality. The manipulation leads to access control. This vulnerability is documented as CVE-2019-1647. The attack requires being on the local network. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco SD-WAN Solution (Network Management Software) (version now known). This issue affects some unknown processing. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the Cisco SD-WAN Solution could allow an authenticated, adjacent attacker to bypass authentication and have direct unauthorized access to other vSmart containers. The vulnerability is due to an insecure default configuration of the affected system. An attacker could exploit this vulnerability by directly connecting to the exposed services. An exploit could allow the attacker to retrieve and modify critical system files.

The bug was discovered 01/23/2019. The weakness was released 01/24/2019 with Cisco as cisco-sa-20190123-sdwan-unacce as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2019-1647 since 12/06/2018. Access to the local network is required for this attack to succeed. No form of authentication is needed for a successful 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 07/03/2023). MITRE ATT&CK project uses the attack technique T1068 for this issue.

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.

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

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106705†). Entries connected to this vulnerability are available at VDB-130244, VDB-130243, VDB-130242 and VDB-130240. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Network Management Software

Vendor

• Cisco

Name

• SD-WAN Solution

License

• commercial

Website

• Vendor: https://www.cisco.com/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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