Ubuntu update for libjackson-json-java



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2017-15095
CVE-2017-7525
CVE-2019-10172
CWE-ID CWE-20
CWE-502
CWE-611
Exploitation vector Network
Public exploit Public exploit code for vulnerability #2 is available.
Vulnerable software
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Operating systems & Components / Operating system

libjackson-json-java (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Remote code execution

EUVDB-ID: #VU9607

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-15095

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists in the jackson-databind development library due to improper implementation of blacklists for input handled by the ObjectMapper object readValue method. A remote unauthenticated attacker can send a malicious input and execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package libjackson-json-java to the latest version.

Vulnerable software versions

Ubuntu: 16.04

libjackson-json-java (Ubuntu package): before 1.9.2-7ubuntu0.2

CPE2.3 External links

http://ubuntu.com/security/notices/USN-4741-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Deserialization of untrusted data

EUVDB-ID: #VU9128

Risk: High

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2017-7525

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to a deserialization flaw in the jackson-databind component. A remote attacker can send a specially crafted input to the readValue method of the ObjectMapper and execute arbitrary code with privileges of the target service.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected package libjackson-json-java to the latest version.

Vulnerable software versions

Ubuntu: 16.04

libjackson-json-java (Ubuntu package): before 1.9.2-7ubuntu0.2

CPE2.3 External links

http://ubuntu.com/security/notices/USN-4741-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) XML External Entity injection

EUVDB-ID: #VU65655

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-10172

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Mitigation

Update the affected package libjackson-json-java to the latest version.

Vulnerable software versions

Ubuntu: 16.04

libjackson-json-java (Ubuntu package): before 1.9.2-7ubuntu0.2

CPE2.3 External links

http://ubuntu.com/security/notices/USN-4741-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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