SUSE update for rubygem-actionpack-4_2

1) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU23688

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-16782

CWE-ID: CWE-208 - Information Exposure Through Timing Discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a hijack victim's session.

The vulnerability exists due to an indexing issue in Rack (RubyGem rack) when processing user sessions. A remote attacker can guess session identifier and hijack victim's session.

Mitigation

Update the affected package rubygem-actionpack-4_2 to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 8 - 9

SUSE OpenStack Cloud: 7

ruby2.1-rubygem-actionpack-4_2: before 4.2.9-7.9.1

CPE2.3

• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:8:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:9:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud:7:*:*:*:*:*:*:*
• cpe:2.3:o:suse:ruby2.1-rubygem-actionpack-4_2:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20211162-1/

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.