External risk intelligence

Silverpeas Password Change Bypass Vulnerability.

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2024-42850

Silverpeas is a collaborative portal and document management system typically deployed as a web application. Such platforms are frequently exposed to the internet to allow remote user access to shared resources and internal communication tools, making the password management interface a likely internet-facing surface.

Silverpeas

6.4.2 and earlier

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This critical vulnerability affects Silverpeas, a collaborative portal and document management system, by allowing attackers to bypass password complexity rules. This could potentially lead to unauthorized access if exploited. The primary concern is to confirm if Silverpeas is in use and if this specific function is exposed.

Bypasses strong password rules.
Affects user account security.
Confirm relevance and exposure.

Attack Path

How an attacker could exploit the issue

An attacker could target the password change functionality of Silverpeas to circumvent security policies. This vulnerability allows an attacker to bypass password complexity rules, potentially leading to unauthorized access and modification of sensitive information.

Accessible via the network.
Bypasses password complexity requirements.
Enables unauthorized access and data manipulation.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated attacker to bypass password complexity rules when changing a password, potentially enabling the use of weaker passwords. This could affect system integrity if unauthorized users gain access through easily guessable credentials.

System passwords could be weakened.
Attackers could bypass complexity rules.
Unauthorized access may occur.

Operational Fix

Recommended remediation, mitigation, and detection steps

The affected password change function in Silverpeas indicates that platform or application owners are primarily responsible for remediation. The first step is to identify all Silverpeas instances, determine their reachability and business criticality, and locate the accountable owner for each. Remediation planning should then be risk-based, considering factors like exposure and operational impact.

Platform or application owners should own the issue.
Verify Silverpeas instance reachability and criticality.
Plan remediation based on identified risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Silverpeas software?

Silverpeas is a collaborative portal and document management system. Organizations use it as a centralized web-based platform to share internal documents, coordinate team communications, and manage organizational knowledge across diverse user groups.

What does CWE-521 mean for CVE-2024-42850?

CWE-521 refers to a weakness in enforcing password complexity. In this CVE, the vulnerability allows a user to change a password while ignoring the system's security rules. Instead of being forced to use a strong, complex password, someone could set a weak or easily guessable one, which undermines the entire account security policy.

How can an attacker trigger this password bypass?

The vulnerability is triggered by interacting with the specific password change function within the Silverpeas portal. It does not require special administrative privileges or complex preconditions. Simply accessing the affected function allows the bypass; however, merely viewing the login page or browsing other areas of the portal does not initiate this specific flaw.

Why is this CVE considered relevant for my network?

According to Halo Surface Signal, Silverpeas is typically deployed as a web application and is frequently exposed to the internet to support remote collaboration. Because the password management interface is often reachable from outside the network, the platform is likely to be an internet-facing surface, increasing the potential risk for unauthorized access.

What should I do if I run Silverpeas?

Begin by creating an inventory of all your Silverpeas instances to understand where they are deployed and who manages them. Once identified, evaluate the reachability and business criticality of each instance. Coordinate with the relevant application owners to assess the risk, prioritize these assets, and prepare for the necessary updates or configuration changes required to secure the password function.

References

github.com/njmbb8/CVE-2024-42850

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.