Deltek Ajera Timesheets up to 9.10.16 Deserialization Secure/SAService.rem deserialization

Summaryinfo

A vulnerability categorized as critical has been discovered in Deltek Ajera Timesheets up to 9.10.16. Affected is an unknown function of the file Secure/SAService.rem of the component Deserialization. Executing a manipulation can lead to deserialization. The identification of this vulnerability is CVE-2018-20221. The attack may be launched remotely. Furthermore, there is an exploit available. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability has been found in Deltek Ajera Timesheets up to 9.10.16 and classified as critical. This vulnerability affects an unknown functionality of the file Secure/SAService.rem of the component Deserialization. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Secure/SAService.rem in Deltek Ajera Timesheets 9.10.16 and prior are vulnerable to remote code execution via deserialization of untrusted user input from an authenticated user. The executed code will run as the IIS Application Pool that is running the application.

The bug was discovered 01/07/2019. The weakness was shared 03/21/2019 as EDB-ID 46086 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2018-20221 since 12/19/2018. The attack can be initiated remotely. The successful exploitation needs a single authentication. Technical details and also a public exploit are known.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 73 days. During that time the estimated underground price was around $0-$5k.

Proper firewalling of is able to address this issue.

The vulnerability is also documented in the vulnerability database at Exploit-DB (46086). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Deltek

Name

• Ajera Timesheets

Version

• 9.10.0
• 9.10.1
• 9.10.2
• 9.10.3
• 9.10.4
• 9.10.5
• 9.10.6
• 9.10.7
• 9.10.8
• 9.10.9
• 9.10.10
• 9.10.11
• 9.10.12
• 9.10.13
• 9.10.14
• 9.10.15
• 9.10.16

CPE 2.3info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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