Multiple vulnerabilities in Azure IoT Java SDK

Published: 2019-02-13
Severity Low
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2019-0741
CVE-2019-0729
CWE ID CWE-200
CWE-310
Exploitation vector Local network
Public exploit N/A
Vulnerable software Java SDK for Azure IoT Subscribe
Vendor Microsoft

Security Advisory

1) Information disclosure

Severity: Low

CVSSv3: 5.4 [CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-0741

CWE-ID: CWE-200 - Information Exposure

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists in the way Azure IoT Java SDK logs sensitive information. A local user can gain unauthorized access to sensitive information and compromise the affected device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Java SDK for Azure IoT: -

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0741

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Cryptographic issues

Severity: Low

CVSSv3: 4.7 [CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-0729

CWE-ID: CWE-310 - Cryptographic Issues

Description

The vulnerability allows a remote attacker to elevate privileges on the device.

The vulnerability exists due to Azure IoT Java SDK generates predictable symmetric keys for encryption. An attacker can derive the keys from the way they are generated and use them to access a user's IoT hub.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Java SDK for Azure IoT: -

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0729

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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