Vulnerability in Citrix Xenserver
CVE-2018-11053
Dell EMC iDRAC Service Module for all supported Linux and XenServer versions v3.0.1, v3.0.2, v3.1.0, v3.2.0, when started, changes the default file permission of the hosts file of the host operating system (/etc/hosts) to world writable. A malicious low privileged operating system user or process could modify the host file and potentially redirect traffic from the intended destination to sites hosting malicious or unwanted content.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Citrix Xenserver — versions 7.1
- Dell EMC Idrac Service Module — versions 3.0.1, 3.0.2, 3.1.0
- Dell EMC Idrac Service Module — versions 3.0.1, 3.1.0, 3.2.0
- Red Hat Enterprise Linux — versions 6.9, 7.4
- SUSE Linux Enterprise Server — versions 11, 12
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/104567 (VDB Entry, Third Party Advisory, vdb-entry)
- www.dell.com/support/article/us/en/19/sln310281/ism-dell-emc-idrac-service-modu… (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-11053?
- CVE-2018-11053 is a medium-severity vulnerability in Citrix Xenserver, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 6.5/10. Published 2018-06-26.
- How severe is CVE-2018-11053?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-11053 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.