Cyber Resilience

CVE-2024-42850

Silverpeas ≤ 6.4.2

Public PoC
Published
16 August 2024
Modified
05 July 2026
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.014 71th percentile
Risk Priority 92 floored blend · peak EPSS

Summary

CVE-2024-42850 is a critical-severity Weak Password Requirements (CWE-521) vulnerability in Silverpeas Silverpeas. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Brute Force (T1110); ranked in the top 29% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to IA-5 (Authenticator Management) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2024-42850 affects the password change function in Silverpeas versions 6.4.2 and earlier. The flaw allows bypass of password complexity requirements and is classified under CWE-521, with a CVSS 3.1 base score of 9.8 reflecting network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability.

An unauthenticated attacker can exploit the issue remotely to set passwords that violate the application's intended complexity rules. This weakens account protections and can lead to full system compromise when combined with other attack paths.

The listed references include the Silverpeas project site and a public GitHub repository containing vulnerability details, but no advisory text or patch information is supplied. The associated EPSS score is currently 0.4978 at its observed peak.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

An issue in the password change function of Silverpeas v6.4.2 and lower allows for the bypassing of password complexity requirements.

CWE(s)
CWE-521

Related Threats

MITRE ATT&CK Enterprise Techniques

T1110 Brute Force Credential Access
Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.
attack.mitre.org →
T1110.001 Password Guessing Credential Access
Adversaries with no prior knowledge of legitimate credentials within the system or environment may guess passwords to attempt access to accounts.
attack.mitre.org →
T1110.002 Password Cracking Credential Access
Adversaries may use password cracking to attempt to recover usable credentials, such as plaintext passwords, when credential material such as password hashes are obtained.
attack.mitre.org →
T1110.003 Password Spraying Credential Access
Adversaries may use a single or small list of commonly used passwords against many different accounts to attempt to acquire valid account credentials.
attack.mitre.org →
T1133 External Remote Services Persistence
Adversaries may leverage external-facing remote services to initially access and/or persist within a network.
attack.mitre.org →
T1558.003 Kerberoasting Credential Access
Adversaries may abuse a valid Kerberos ticket-granting ticket (TGT) or sniff network traffic to obtain a ticket-granting service (TGS) ticket that may be vulnerable to [Brute Force](https://attack.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-47325Same product: Silverpeas Silverpeas
CVE-2024-36042Same product: Silverpeas Silverpeas
CVE-2024-48814Same product: Silverpeas Silverpeas
CVE-2025-46047Same product: Silverpeas Silverpeas
CVE-2023-47321Same product: Silverpeas Silverpeas
CVE-2023-47326Same product: Silverpeas Silverpeas
CVE-2024-39031Same product: Silverpeas Silverpeas
CVE-2024-42849Same product: Silverpeas Silverpeas
CVE-2023-47320Same product: Silverpeas Silverpeas
CVE-2024-29392Same product: Silverpeas Silverpeas

Affected Assets

silverpeas
silverpeas
≤ 6.4.2

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 2 hardening rules · 1 OS baseline
Validate
Prove the fix (OWASP ASVS)
  • V6.2.4
  • V6.2.9
  • V6.2.12
  • V6.4.1

Mitigating Controls (NIST 800-53 r5) AI

IA-5 Authenticator Management good match

IA-5 directly requires organizations to enforce strength, complexity, and change rules for passwords and other authenticators at issuance and reset.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-03 full match
prevents

Explicitly requires enforcing minimum password strength as part of authentication.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.17 Authentication information mostly match
prevents

Enforcing minimum length, complexity, non-dictionary, and non-reuse rules directly counters weak password policies that allow attackers to guess or brute-force credentials.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

RHEL 7 (2 rules)
  • V-204424 The Red Hat Enterprise Linux operating system must not allow accounts configured with blank or null passwords. prevents CWE-521
  • V-204425 The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using an empty password. prevents CWE-521

References