GHSA-fv48-hjhp-94c7 CVE-2020-12477
Incorrect Authorization in TeamPass
High
Packagist
- Severity
- 7.5 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 1.80%
- Chance of exploitation in the next 30 days. Higher than 78.53% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-863 Incorrect Authorization
- Fix
- None yet
- No fixed version published
Description
The REST API functions in TeamPass 2.1.27.36 allow any user with a valid API token to bypass IP address whitelist restrictions via an X-Forwarded-For client HTTP header to the getIp function.
Affected versions
Packagist
| Package | Vulnerable | Fixed in |
|---|---|---|
| nilsteampassnet/teampass | <= 2.1.27.36 |
No fix yet |
How to fix
No fixed version has been published yet. Until one is, remove or replace the package, or turn off or isolate the affected feature. This page updates when a fix ships.
Severity breakdown
CVSS 3.1 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Weakness
CWE-863: Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
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
Advisories
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-9wmc-988h-2mv2 TeamPass privileges issue | High | Also affects nilsteampassnet/teampass |
| GHSA-7rm3-4w6j-8xx4 TeamPass mail_me operation authorization issue | Medium | Also affects nilsteampassnet/teampass |
| GHSA-2697-96mv-3gfm TeamPass does not properly check whether a folder is in a user's allowed folders list | Medium | Also affects nilsteampassnet/teampass |
| GHSA-524r-w8fx-hqg3 TeamPass Cross-site Scripting vulnerability | Medium | Also affects nilsteampassnet/teampass |
| GHSA-2rhg-hqq9-8xjh TeamPass information exposure vulnerability | High | Also affects nilsteampassnet/teampass |
| GHSA-2cv5-qvq3-6276 TeamPass vulnerable to Improper Encoding or Escaping of Output | Medium | Also affects nilsteampassnet/teampass |
| GHSA-97hm-2mfr-2p97 TeamPass Code Injection vulnerability | High | Also affects nilsteampassnet/teampass |
| GHSA-pwrw-g29q-3mp8 TeamPass Cross-site Scripting vulnerability | Medium | Also affects nilsteampassnet/teampass |
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