IBM WebSphere Application Server 7.0/8.0/8.5/9.0 UNC Path privileges management

Summaryinfo

A vulnerability marked as critical has been reported in IBM WebSphere Application Server 7.0/8.0/8.5/9.0. This vulnerability affects unknown code of the component UNC Path Handler. Performing a manipulation results in privileges management. This vulnerability is identified as CVE-2020-4534. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability was found in IBM WebSphere Application Server 7.0/8.0/8.5/9.0 (Application Server Software). It has been classified as critical. This affects an unknown code of the component UNC Path Handler. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a local authenticated attacker to gain elevated privileges on the system, caused by improper handling of UNC paths. By scheduling a task with a specially-crafted UNC path, an attacker could exploit this vulnerability to execute arbitrary code with higher privileges. IBM X-Force ID: 182808.

The weakness was released 08/03/2020 (Website). The advisory is shared at ibm.com. This vulnerability is uniquely identified as CVE-2020-4534 since 12/30/2019. An attack has to be approached locally. A authentication is needed 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 08/03/2020). MITRE ATT&CK project uses the attack technique T1068 for this issue.

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

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

Productinfo

Type

• Application Server Software

Vendor

• IBM

Name

• WebSphere Application Server

Version

• 7.0
• 8.0
• 8.5
• 9.0

License

• commercial

Website

• Vendor: https://www.ibm.com/

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