CVE-2018-1002104: kubernetes k8s.gcr.io/defaultbackend
CVSS: 5.3v3.1MediumModified
AliasesGHSA-p3x5-5xpx-9phm
Published 14-01-2020Last modified 16-09-2024
Vulnerability summary
CVE-2018-1002104 is a medium (CVSS 5.3) vulnerability in kubernetes k8s.gcr.io/defaultbackend. EPSS estimates a 1.14% chance of exploitation in the next 30 days, higher than 66% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
1.14%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 0 · Related 5Timeline
- 14-01-2020PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
Versions < 1.5 of the Kubernetes ingress default backend, which handles invalid ingress traffic, exposed prometheus metrics publicly.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NSourcesAll 3 agree
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · GoEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.14%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
0.00 pp
From 1.14% on 19-09-2026
19-09-202619-10-2026
EPSS score1.14%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-215Insertion of Sensitive Information Into Debugging CodeThe product inserts sensitive information into debugging code, which could expose this information if the debugging code is not disabled in production.
- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected systems
Kubernetes2 products
- k8s.gcr.io/defaultbackend≥ defaultbackend, < 1.5
- nginx_ingress_controller< 1.5.0
K8s.io1 product
- ingress-nginx< 1.5
2 vendors · 3 products
