CVE-2020-36200Public exploitNetwork attack vector

Internal service access via unrestricted watcher URLs

Published Jan 21, 2021 · Updated Aug 4, 2024

SSRF in Kaspersky TinyCheck without commits 9fd360d and ea53de8 allows remote authenticated users to reach internal HTTP services. The watchers service reads attacker-modified URLs from the watchers/iocs list in config.yaml and issues HTTP GET requests without restricting the destination. Backend credentials are required to rewrite that list; the resulting request can cross network boundaries and invoke localhost-only frontend actions.

CVSS severity6.5
Medium
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Kaspersky TinyCheck without commits 9fd360d and ea53de8 allows remote authenticated users to reach internal HTTP services. The watchers service reads attacker-modified URLs from the watchers/iocs list in config.yaml and issues HTTP GET requests without restricting the destination. Backend credentials are required to rewrite that list; the resulting request can cross network boundaries and invoke localhost-only frontend actions.

The record

CVE
CVE-2020-36200
Published
Jan 21, 2021
Updated
Aug 4, 2024
Vendor
Kaspersky
Product
TinyCheck
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 21, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=without commits 9fd360d and ea53de8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Kaspersky · TinyCheckversion=without commits 9fd360d and ea53de8

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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