CVE-2023-35020: IBM Sterling Control Center 6.3.0 could allow a remote attacker to traverse directories on the system

Routine

MEDIUM 5.4DOWNGRADE

CVE-2023-35020 is a medium-severity flaw (CVSS 5.4) affecting sterling control center. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Sterling Control Center 6.3.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 257874.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-22
Published	2024-01-19
Last modified	2026-06-17

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-01-19 01:15 UTCPublished CVE record published
2026-06-17 06:04 UTCUpdated Record last modified

ibm sterling control center DOWNGRADE

Affected: 6.3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.3.0

1. Check installed version

apt-cache policy sterling-control-center || rpm -q sterling-control-center || sterling-control-center --version

2. No fixed release: DOWNGRADE to a release before 6.3.0 (Debian / Ubuntu)

apt-cache madison sterling-control-center sudo apt install sterling-control-center=<VERSION_BEFORE_6.3.0> sudo apt-mark hold sterling-control-center

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sterling-control-center sudo dnf downgrade sterling-control-center-<VERSION_BEFORE_6.3.0> sudo dnf versionlock add sterling-control-center

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-35020?

sterling control center: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-35020 being exploited?

CVE-2023-35020 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-35020 affect?

CVE-2023-35020 affects sterling control center. Severity is medium (CVSS 5.4). IBM Sterling Control Center 6.3.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM

How urgent is CVE-2023-35020?

Priority 30/100. No elevated risk signals yet.

Related CVEs

CVE-2023-43035 MEDIUM 4.0 DOWNGRADE IBM Sterling Control Center 6.2.1, 6.3.1, and 6.4.0 allows web pages to be stored locally which can be read by
CVE-2023-42007 MEDIUM 5.4 DOWNGRADE IBM Sterling Control Center 6.2.1, 6.3.1, and 6.4.0 is vulnerable to cross-site scripting
CVE-2023-35894 MEDIUM 5.4 DOWNGRADE IBM Control Center 6.2.1 through 6.3.1 is vulnerable to HTTP header injection, caused by improper validation o

References

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