Thunder ADC: Improper Neutralization of Special Elements used in a Command
CVE-2024-30368 is a high-severity improper neutralization of special elements used in a command vulnerability in Thunder ADC from A10, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected Thunder ADC versions: 6.0.2, build 68. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 3.02% chance of exploitation within 30 days, higher than 88% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update thunder_adc to 6.0.3-p1 or 5.2.1-p10 or 4.1.4-gr1-p14, whichever matches your release line, or a later version.
- Read the advisory on support.a10networks.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| A10 | Thunder ADC | 6.0.2, build 68 | Not stated |
| A10networks | thunder_adc | 6.0.0 up to, but not including, 6.0.3-p1; 5.1.0 up to, but not including, 5.2.1-p10; 4.1.4 up to, but not including, 4.1.4-gr1-p14 | 6.0.3-p1, 5.2.1-p10, 4.1.4-gr1-p14 |
| A10networks | Advanced Core Operating System | 4.1.4; 5.1.0; 5.2.0; 5.2.1; 6.0.0; 6.0.1; 6.0.2; 6.0.3 | Not stated |
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
- NoneNo action by a victim is required.
- 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:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 3.0 | 7.2 | High | CNA (trendmicro.com) |
Official description
A10 Thunder ADC CsrRequestView Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of A10 Thunder ADC. Authentication is required to exploit this vulnerability. The specific flaw exists within the CsrRequestView class. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of a10user. Was ZDI-CAN-22517.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Special Elements used in a Command
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
How developers prevent this class of flaw
- If at all possible, use library calls rather than external processes to recreate the desired functionality.
- If possible, ensure that all external commands called from the program are statically created.
- Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.
More Improper Neutralization of Special Elements used in a Command vulnerabilities (CWE-77)
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
Third-party and government advisories
- zerodayinitiative.com/advisories/ZDI-24-524/Third Party Advisory, VDB Entry
Other vulnerabilities in Thunder ADC
- 7.8 High severity
- 8.8 High severity
Recent Improper Neutralization of Special Elements used in a Command vulnerabilities
- 9.8 Critical severity
- 7.2 High severity
- 8.8 High severity
- 8.8 High severity
- 9.8 Critical severity
- 9.8 Critical severity
Spotted an error? Tell us.