CVE-2023-35894Network attack vector

Session hijacking via unvalidated Host header

Published Mar 7, 2025 · Updated Aug 17, 2025

HTTP Host header injection in IBM Sterling Control Center 6.2.1 through 6.3.1 allows remote authenticated users to hijack sessions. The web interface accepts an attacker-controlled Host header without validating it, enabling injected host data to drive XSS or cache poisoning. Low-privileged access is required; confidentiality and integrity impact are limited, with no reported service interruption.

CVSS severity5.4
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTTP Host header injection in IBM Sterling Control Center 6.2.1 through 6.3.1 allows remote authenticated users to hijack sessions. The web interface accepts an attacker-controlled Host header without validating it, enabling injected host data to drive XSS or cache poisoning. Low-privileged access is required; confidentiality and integrity impact are limited, with no reported service interruption.

The record

CVE
CVE-2023-35894
Published
Mar 7, 2025
Updated
Aug 17, 2025
Vendor
IBM
Product
IBM Sterling Control Center
Classifications
CWE-644, CWE-116, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 17, 2025Record 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=6.2.1 <=6.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Sterling Control Centerversion=6.2.1 <=6.3.1

Published CVSS scores

5.4IBM X-ForceCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-644Improper Neutralization of HTTP Headers for Scripting Syntax
CWE-116Improper Encoding or Escaping of Output
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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