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GHSA-v9vc-7x69-c2x8 CVE-2023-4124 GO-2023-1997

Answer Missing Authorization vulnerability

Medium Go
Severity
8.1 / 10
Medium · CVSS 3.0
Exploit chance (EPSS)
0.65%
Chance of exploitation in the next 30 days. Higher than 51.15% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-862 Missing Authorization
Fix
1.1.1
Upgrade github.com/answerdev/answer to this version or later

Description

Missing Authorization in GitHub repository answerdev/answer prior to v1.1.1.

Affected versions

Go

PackageVulnerableFixed in
github.com/answerdev/answer
< 1.1.1
1.1.1

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

github.com/answerdev/answer Go → 1.1.1

go
go get github.com/answerdev/answer@v1.1.1 && go mod tidy

Severity breakdown

CVSS 3.0 8.1

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Weakness

CWE-862: Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

How to prevent it
  • Architecture and Design: Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
  • Architecture and Design: Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].
  • Architecture and Design: Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
  • Architecture and Design: For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page. One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
  • System Configuration, Installation: Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-pj2h-85jq-g5vg
Answer Missing Authentication for Critical Function
High Also affects github.com/answerdev/answer
GHSA-52h8-c876-989c
Answer has Race Condition within a Thread
Medium Also affects github.com/answerdev/answer
GHSA-ggcf-hwxp-rc77
Answer Insufficient Session Expiration vulnerability
High Also affects github.com/answerdev/answer
GHSA-j63x-f657-2m9g
Answer has Weak Password Requirements
High Also affects github.com/answerdev/answer
GHSA-qmqw-r4x6-3w2q
Answer Missing Authorization vulnerability
Low Also affects github.com/answerdev/answer
GHSA-j97g-77fj-9c4p
Answer vulnerable to account takeover because password reset links do not expire
High Also affects github.com/answerdev/answer
GHSA-65v8-6pvw-jwvq
Answer vulnerable to Insertion of Sensitive Information Into Sent Data
Medium Also affects github.com/answerdev/answer
GHSA-8jg3-rx43-3fv4
Answer vulnerable to Exposure of Sensitive Information Through Metadata
Medium Also affects github.com/answerdev/answer
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