GHSA-5fp8-c45m-256p BIT-superset-2021-42250 CVE-2021-42250 PYSEC-2021-435
Improper Encoding or Escaping of Output in Apache Superset
Medium
PyPI
- Severity
- 0.0 / 10
- Medium · CVSS 4.0
- Exploit chance (EPSS)
- 1.82%
- Chance of exploitation in the next 30 days. Higher than 78.74% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-116 Improper Encoding or Escaping of Output
- Fix
1.3.2- Upgrade apache-superset to this version or later
Description
Improper output neutralization for Logs. A specific Apache Superset HTTP endpoint allowed for an authenticated user to forge log entries or inject malicious content into logs.
Affected versions
PyPI
| Package | Vulnerable | Fixed in |
|---|---|---|
| apache-superset | < 1.3.2 |
1.3.2 |
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.
apache-superset PyPI → 1.3.2
- pip
pip install --upgrade "apache-superset>=1.3.2"- poetry
poetry add "apache-superset>=1.3.2"- uv
uv add "apache-superset>=1.3.2"
Severity breakdown
CVSS 4.0 0.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- Low
- User interaction
- None
- Confidentiality (vulnerable system)
- None
- Integrity (vulnerable system)
- High
- Availability (vulnerable system)
- None
- Confidentiality (subsequent systems)
- None
- Integrity (subsequent systems)
- None
- Availability (subsequent systems)
- None
CVSS 3.1 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Weakness
CWE-116: Improper Encoding or Escaping of Output
The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.
How to prevent it
- 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 the ESAPI Encoding control [REF-45] or a similar tool, library, or framework. These will help the programmer encode outputs in a manner less prone to error. Alternately, use built-in functions, but consider using wrappers in case those functions are discovered to have a vulnerability.
- Architecture and Design: If available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated. For example, stored procedures can enforce database query structure and reduce the likelihood of SQL injection.
- Architecture and Design, Implementation: Understand the context in which your data will be used and the encoding that will be expected. This is especially important when transmitting data between different components, or when generating outputs that can contain multiple encodings at the same time, such as web pages or multi-part mail messages. Study all expected communication protocols and data representations to determine the required encoding strategies.
- Architecture and Design: In some cases, input validation may be an important strategy when output encoding is not a complete solution. For example, you may be providing the same output that will be processed by multiple consumers that use different encodings or representations. In other cases, you may be required to allow user-supplied input to contain control information, such as limited HTML tags that support formatting in a wiki or bulletin board. When this type of requirement must be met, use an extremely strict allowlist to limit which control sequences can be used. Verify that the resulting syntactic structure is what you expect. Use your normal encoding methods for the remainder of the input.
- Architecture and Design: Use input validation as a defense-in-depth measure to reduce the likelihood of output encoding errors (see CWE-20).
- Requirements: Fully specify which encodings are required by components that will be communicating with each other.
- Implementation: When exchanging data between components, ensure that both components are using the same character encoding. Ensure that the proper encoding is applied at each interface. Explicitly set the encoding you are using whenever the protocol allows you to do so.
References
Advisories
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-5cx2-vq3h-x52c Apache superset missing check for default SECRET_KEY | Critical Known exploited | Also affects apache-superset |
| GHSA-mwf2-qr4v-94h2 Apache Superset: Read-Only Bypass via Improper Input Validation on PostgreSQL Connections | Medium | Also affects apache-superset |
| GHSA-h294-8fxm-m2pj Apache Superset allows authenticated users to view sensitive data without explicit permissions | Medium | Also affects apache-superset |
| GHSA-3m2g-v7jf-7fxc Apache Superset Improper Authorization allows low-privileged users to bypass access controls | Medium | Also affects apache-superset |
| GHSA-gvxg-9hqx-f4rg Apache Superset allows privileged users to conduct error-based SQL Injection | Medium | Also affects apache-superset |
| GHSA-48m2-v2r8-h23m Apache Superset: Incomplete DISALLOWED_SQL_FUNCTIONS default list for ClickHouse engine | Medium | Also affects apache-superset |
| GHSA-mhpq-m962-mg92 Apache Superset allows authenticated users to discover metadata about datasources they don't have permission to access | Medium | Also affects apache-superset |
| GHSA-fxgf-3xh6-m2pp Apache Superset has bypass of `DISALLOWED_SQL_FUNCTIONS` that allows execution of blocked SQL functions | Medium | Also affects apache-superset |
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