Top issues
Detected digital signatures made with a certificate issued by an unknown certificate authority.
signatures
Problem
Digital signatures are applied to applications, packages and documents as a cryptographically secured authenticity record. Signatures are made using digital certificates, which can either be purchased from certificate authorities or be self-issued. Lists of trusted certificate authorities can typically be found in certificate stores in your operating system or internet browser. Unless the digital signature ends its signing chain with a trusted certificate, it is not considered to be trustworthy. Releasing software components signed with such certificates may result in application errors and availability outages.Prevalence in PowerShell Gallery community
3 packages
found in
Top 100
9 packages
found in
Top 1k
23 packages
found in
Top 10k
85 packages
in community
Next steps
Acquire a new certificate and re-sign the software component, then publish the software package again.
Detected digital signatures that rely on a weak digest algorithm for integrity validation.
signatures
Problem
Digital signatures are applied to applications, packages and documents as a cryptographically secured authenticity record. Signatures verify the origin and the integrity of the object they apply to. The integrity validation relies on the cryptographic strength of the encryption and the hash verification algorithm. If either of the two is considered weak by current standards, there is a chance the signed object could be maliciously modified, without triggering the integrity failure check.Prevalence in PowerShell Gallery community
85 packages
found in
Top 100
354 packages
found in
Top 1k
1054 packages
found in
Top 10k
1674 packages
in community
Next steps
Create signatures with strong ECC key-length of at least 224 bits, or RSA key-length of at least 2048 bits, and use SHA256 as the hashing algorithm. While encryption key-length upgrade does require you to obtain a new certificate, the hashing algorithm can freely be selected during signing.
With Microsoft SignTool, you can specify the hashing algorithm using the /fd SHA256 parameter.
Problem
Uniform Resource Locators (URLs) are structured addresses that point to locations and assets on the internet. URLs allow software developers to build complex applications that exchange data with servers that can be hosted in multiple geographical regions. URLs can commonly be found embedded in documentation, configuration files, source code and compiled binaries. A port number is associated with a network address of a host, such as an IP address, and the type of network protocol used for communication. Within URLs, the ports are optional. Ports can be specified in a URL immediately following the domain name. Each network protocol, or schema, has a set of standard ports on which the service operates. This issue is raised when a mismatch between a network protocol and its expected port number is detected. While the presence of non-standard ports does not imply malicious intent, all of their uses in a software package should be documented and approved.Prevalence in PowerShell Gallery community
14 packages
found in
Top 100
123 packages
found in
Top 1k
638 packages
found in
Top 10k
1008 packages
in community
Next steps
Investigate reported detections.
If the software should not include these network references, investigate your build and release environment for software supply chain compromise.
You should delay the software release until the investigation is completed, or until the issue is risk accepted.
Consider changing the port to one that is standard for the networking protocol.
Detected digital signatures that have not been performed with an extended validation certificate.
signatures
Problem
Digital signatures are applied to applications, packages and documents as a cryptographically secured authenticity record. Signatures are made using digital certificates, which can either be purchased from certificate authorities or be self-issued. When a certificate is purchased from a certificate authority, the subject that requests it goes through an identity validation process. Depending on the certificate type, those checks can be basic or extended. Confirming the subject identity is a multi-step process, and the requesting subject can be mapped to its legal entity name only through extended validation of submitted documents. Extended identity validation typically costs more, and it takes longer for a certificate to be issued when this process is correctly followed.Prevalence in PowerShell Gallery community
86 packages
found in
Top 100
259 packages
found in
Top 1k
991 packages
found in
Top 10k
1561 packages
in community
Next steps
Consider the benefits of acquiring extended validation certificates. Operating systems tend to be more trusting of software packages signed in this way. Certain security warnings and prompts might also be automatically suppressed. This reduces the number of support tickets for organizations that opt to use extended validation certificates.
Problem
Private keys and certificates are considered sensitive information that should not be included in released software packages. However, developers frequently release sensitive information alongside their applications to facilitate automated software testing. Testing keys and certificates often proliferate through the software supply chain. When such information gets shared publicly, it is catalogued by file reputation databases. Any private key and certificate files seen by a file reputation database prior to configured time threshold can be automatically suppressed. Commonly shared sensitive information is not considered to be secret.Prevalence in PowerShell Gallery community
5 packages
found in
Top 100
126 packages
found in
Top 1k
372 packages
found in
Top 10k
632 packages
in community
Next steps
Review the commonly shared sensitive information for evidence of inadvertently exposed secrets.
If the keys were published unintentionally and the software has been made public, you should revoke the keys and file a security incident.
Top behaviors
Loads additional snap-ins or modules to the current session.
payload
Prevalence in PowerShell Gallery community
Behavior often found in this community (Common)
90 packages
found in
Top 100
509 packages
found in
Top 1k
3113 packages
found in
Top 10k
5185 packages
in community
Interacts with Microsoft .NET Framework code, types and assemblies.
execution
Prevalence in PowerShell Gallery community
Behavior often found in this community (Common)
100 packages
found in
Top 100
804 packages
found in
Top 1k
6518 packages
found in
Top 10k
11726 packages
in community
Contains common certificate strings.
settings
Prevalence in PowerShell Gallery community
Behavior often found in this community (Common)
5 packages
found in
Top 100
45 packages
found in
Top 1k
439 packages
found in
Top 10k
618 packages
in community
Encodes data using the Base64 algorithm.
packer
Prevalence in PowerShell Gallery community
Behavior often found in this community (Common)
74 packages
found in
Top 100
404 packages
found in
Top 1k
2154 packages
found in
Top 10k
3540 packages
in community
Decodes data using the Base64 algorithm.
packer
Prevalence in PowerShell Gallery community
Behavior often found in this community (Common)
68 packages
found in
Top 100
371 packages
found in
Top 1k
1732 packages
found in
Top 10k
2838 packages
in community
Top vulnerabilities
No vulnerabilities found.