CVE-2024-31156NVD status: Analyzed
BIG-IP: Improper Neutralization of Input During Web Page Generation
CVE-2024-31156 is a high-severity improper neutralization of input during web page generation vulnerability in BIG-IP from F5, with a CVSS 3.1 base score of 8.0 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, but only if a user takes part, for example by opening a link or file. The record lists versions 17.1.1.3, 16.1.4.3, 15.1.10.4 as the first without the flaw, so updating BIG-IP to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.58% chance of exploitation within 30 days, which is low compared with other CVEs.
Next patch cycle
High severity with no evidence of exploitation so far.
What to do
- Update BIG-IP to 17.1.1.3 or 16.1.4.3 or 15.1.10.4, whichever matches your release line, or a later version.
- Update Big-ip Access Policy Manager to 15.1.10.4 or 16.1.4.3 or 17.1.1.3, whichever matches your release line, or a later version.
- Update Big-ip Advanced Firewall Manager to 15.1.10.4 or 16.1.4.3 or 17.1.1.3, whichever matches your release line, or a later version.
- Read the advisory on my.f5.com for workarounds and exact fixed builds.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| F5 | BIG-IP | 17.1.0 up to, but not including, 17.1.1.3; 16.1.0 up to, but not including, 16.1.4.3; 15.1.0 up to, but not including, 15.1.10.4; 17.1.0 through 17..1; 16.1.0 through 16.1.4; 15.1.0 through 15.1.10 | 17.1.1.3, 16.1.4.3, 15.1.10.4 |
| F5 | Big-ip Access Policy Manager | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Advanced Firewall Manager | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Advanced Web Application Firewall | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Analytics | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Application Acceleration Manager | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Application Security Manager | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Application Visibility And Reporting | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Automation Toolchain | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Carrier-grade Nat | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Container Ingress Services | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Ddos Hybrid Defender | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Domain Name System | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Edge Gateway | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Fraud Protection Service | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Global Traffic Manager | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Link Controller | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Local Traffic Manager | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Policy Enforcement Manager | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip SSL Orchestrator | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Webaccelerator | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
| F5 | Big-ip Websafe | 15.1.0 up to, but not including, 15.1.10.4; 16.1.0 up to, but not including, 16.1.4.3; 17.1.0 up to, but not including, 17.1.1.3 | 15.1.10.4, 16.1.4.3, 17.1.1.3 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H. Scored by CNA (f5.com).
Official description
A stored cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to run JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Input During Web Page Generation
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
How developers prevent this class of flaw
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. Examples of libraries and frameworks that make it easier to generate properly encoded output include Microsoft's Anti-XSS library, the OWASP ESAPI Encoding module, and Apache Wicket.
- Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
- For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
More Improper Neutralization of Input During Web Page Generation vulnerabilities (CWE-79)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in BIG-IP
- 9.8 Critical severity
F5 BIG-IP APM Heap-based Buffer Overflow Exploited
- 8.8 High severity
- 7.5 High severity
- 8.7 High severity
- 8.7 High severity
- 7.5 High severity
Recent Improper Neutralization of Input During Web Page Generation vulnerabilities
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
- 8.3 High severity
- 7.1 High severity
- 7.1 High severity
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