Improper access control in openjdk8 (Alpine package)

1) Improper access control

EUVDB-ID: #VU33428

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-2684

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: RMI). Supported versions that are affected are Java SE: 7u211, 8u202, 11.0.2 and 12; Java SE Embedded: 8u201. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java SE, Java SE Embedded accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets (in Java SE 8), that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.0 Base Score 5.9 (Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

Mitigation

Install update from vendor's website.

Vulnerable software versions

openjdk8 (Alpine package): 8.201.08-r0 - 8.212.04-r1

CPE2.3

• cpe:2.3:o:alpine:openjdk8_alpine_package:8.201.08-r1:*:*:*:*:alpine_linux:*:
• cpe:2.3:o:alpine:openjdk8_alpine_package:8.201.08-r0:*:*:*:*:alpine_linux:*:
• cpe:2.3:o:alpine:openjdk8_alpine_package:8.212.04-r0:*:*:*:*:alpine_linux:*:

External links

http://git.alpinelinux.org/aports/commit/?id=9ad60b3171f76e5694a6a915357f9e047ae50f81
http://git.alpinelinux.org/aports/commit/?id=0cb25ad2948d64c14853aeac4d4ac48b84734992
http://git.alpinelinux.org/aports/commit/?id=46badd1aabd3375ae4b41c7194bc448f74b2ea4a
http://git.alpinelinux.org/aports/commit/?id=cd99b6e6995c646abc19835fdaf4074b1d1d9d6e
http://git.alpinelinux.org/aports/commit/?id=f0ba0b43d55c6da8734fa9b42276c65e19a3cdd3

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.