A vulnerability classified as critical was found in IBM DB2 9.7/10.1/10.5/11.1 (Database Software). Affected by this vulnerability is an unknown part of the component Shared Libraries. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, and 11.1 binaries load shared libraries from an untrusted path potentially giving low privilege user full access to root by loading a malicious shared library. IBM X-Force ID: 158014.

The bug was discovered 03/12/2019. The weakness was published 03/21/2019 (Website). It is possible to read the advisory at exchange.xforce.ibmcloud.com. This vulnerability is known as CVE-2019-4094 since 01/03/2019. Attacking locally is a requirement. A single authentication is necessary for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/03/2023). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 9 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 20107 (IBM DB2 Privilege Escalation Vulnerability (ibm10875860)).

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

Productinfo

Type

• Database Software

Vendor

• IBM

Name

• DB2

Version

• 9.7
• 10.1
• 10.5
• 11.1

License

• commercial

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