CVE-2020-11079Public exploitNetwork attack vector

Arbitrary command execution via unquoted record type

Published May 28, 2020 · Updated Aug 4, 2024

Command injection in Skoranga dns-sync before 0.2.1 allows attackers to execute arbitrary shell commands through the resolve method. The method inserts its unquoted record-type argument into a command string passed to shell.exec without validating the value. Exploitation requires a consuming application to pass attacker-controlled record-type input; injected commands run with that application's OS privileges.

CVSS severity9.8
Critical
EPSS probability2.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Skoranga dns-sync before 0.2.1 allows attackers to execute arbitrary shell commands through the resolve method. The method inserts its unquoted record-type argument into a command string passed to shell.exec without validating the value. Exploitation requires a consuming application to pass attacker-controlled record-type input; injected commands run with that application's OS privileges.

The record

CVE
CVE-2020-11079
Published
May 28, 2020
Updated
Aug 4, 2024
Vendor
Skoranga
Product
dns-sync
Classifications
CWE-77, CWE-94, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 28, 2020CVE 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=< 0.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Skoranga · dns-syncversion=< 0.2.1

Published CVSS scores

8.6GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

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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