CVE-2021-28113Public exploitNetwork attack vector

Root command execution via unsanitized domain parameters

Published Apr 2, 2021 · Updated Aug 3, 2024

Command injection in Okta Access Gateway 2020.8.4 and earlier allows remote authenticated users to execute OS commands through its admin UI. The UI inserts cookieDomain and relayDomain values into arguments for the privileged generateCert.sh shell script without neutralizing command substitutions. Administrator access is required, and successful injection runs commands as root, granting control over appliance data and operation.

CVSS severity6.7
Medium
EPSS probability22.33%
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 Okta Access Gateway 2020.8.4 and earlier allows remote authenticated users to execute OS commands through its admin UI. The UI inserts cookieDomain and relayDomain values into arguments for the privileged generateCert.sh shell script without neutralizing command substitutions. Administrator access is required, and successful injection runs commands as root, granting control over appliance data and operation.

The record

CVE
CVE-2021-28113
Published
Apr 2, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, CWE-77, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 2, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.7NVDAV:N/AC:L/Au:S/C:C/I:C/A:P
6.7OktaCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L/E:H/RL:U/RC:C
6.7NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Unix Shell

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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