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TI-2021-10407 Aliases CVE-2021-29723GHSA-24xw-x4fw-fmcw

Broken or risky cryptographic algorithm in IBM Sterling Secure Proxy

Priority LOW 35CWE-327Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-327.

Summary

IBM Sterling Secure Proxy 6.0.1, 6.0.2, 2.4.3.2, and 3.4.3.2 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-ForceID: 201100.

Why it matters now

EPSS 0.00919 60th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMSterling Secure Proxy3.4.3.2; 2.4.3.2; 6.0.1; 6.0.2—No fix listedCNA
  • Sterling Secure Proxy VendorIBM Affected 3.4.3.2; 2.4.3.2; 6.0.1; 6.0.2 Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:ibm:sterling_external_authentication_server:2.4.3.2:*:*:*:*:*:*:*2.4.3.2VulnerableIBM
cpe:2.3:a:ibm:sterling_external_authentication_server:6.0.1.0:*:*:*:*:*:*:*6.0.1.0VulnerableIBM
cpe:2.3:a:ibm:sterling_external_authentication_server:6.0.2.0:*:*:*:*:*:*:*6.0.2.0VulnerableIBM
cpe:2.3:a:ibm:sterling_secure_proxy:3.4.3.2:*:*:*:*:*:*:*3.4.3.2VulnerableIBM
cpe:2.3:a:ibm:sterling_secure_proxy:6.0.1:*:*:*:*:*:*:*6.0.1VulnerableIBM
cpe:2.3:a:ibm:sterling_secure_proxy:6.0.2:*:*:*:*:*:*:*6.0.2VulnerableIBM
cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:*not specified by NVDRunning onHewlett Packard Enterprise
cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:*not specified by NVDRunning onIBM
cpe:2.3:o:ibm:linux_on_ibm_z:-:*:*:*:*:*:*:*not specified by NVDRunning onIBM
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*not specified by NVDRunning onLinux
  • cpe:2.3:a:ibm:sterling_external_authentication_server:2.4.3.2:*:*:*:*:*:*:* Versions 2.4.3.2 Vulnerable ·IBM
  • cpe:2.3:a:ibm:sterling_external_authentication_server:6.0.1.0:*:*:*:*:*:*:* Versions 6.0.1.0 Vulnerable ·IBM
  • cpe:2.3:a:ibm:sterling_external_authentication_server:6.0.2.0:*:*:*:*:*:*:* Versions 6.0.2.0 Vulnerable ·IBM
  • cpe:2.3:a:ibm:sterling_secure_proxy:3.4.3.2:*:*:*:*:*:*:* Versions 3.4.3.2 Vulnerable ·IBM
  • cpe:2.3:a:ibm:sterling_secure_proxy:6.0.1:*:*:*:*:*:*:* Versions 6.0.1 Vulnerable ·IBM
  • cpe:2.3:a:ibm:sterling_secure_proxy:6.0.2:*:*:*:*:*:*:* Versions 6.0.2 Vulnerable ·IBM
  • cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hewlett Packard Enterprise
  • cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
  • cpe:2.3:o:ibm:linux_on_ibm_z:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:oracle:solaris:-:*:*:*:*:*:-:*not specified by NVDRunning onOracle
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:oracle:solaris:-:*:*:*:*:*:-:* Versions not specified by NVD Running on ·Oracle

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-29723
  2. 2026-10-03 Alias added: GHSA-24xw-x4fw-fmcw

References

Patch 2

  • TI-2020-03813 XML external entity injection in IBM Sterling Secure Proxy CVSS 3.1HIGH 8.2
  • TI-2022-06664 Memory leak in IBM Sterling Secure Proxy CVSS 3.1HIGH 7.5
  • TI-2021-10406 Broken or risky cryptographic algorithm in IBM Sterling Secure Proxy CVSS 3.1HIGH 7.5
  • TI-2013-00433 OS command injection in IBM Sterling External Authentication Server CVSS 3.1HIGH 7.8
  • TI-2022-06662 Buffer overflow in IBM Sterling Secure Proxy CVSS 3.1MEDIUM 6.5
  • TI-2023-15631 IBM Sterling Secure Proxy information disclosure CVSS 3.1MEDIUM 5.5
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences