Connect Secure: Improper Neutralization of Argument Delimiters in a Command
CVE-2024-39711 is a critical-severity improper neutralization of argument delimiters in a command vulnerability in Connect Secure from Ivanti, with a CVSS 3.0 base score of 9.1 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. The record lists versions 22.7R2.1, 9.1R18.7, 22.7_r2.3 as the first without the flaw, so updating Connect Secure to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 1.73% chance of exploitation within 30 days, higher than 78% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Connect Secure to 22.7R2.1 or 9.1R18.7 or 22.7_r2.3 or 9.1_r18.7, whichever matches your release line, or a later version.
- Update Policy Secure to 22.7R1.1 or 22.7_r1.2, whichever matches your release line, or a later version.
- Read the advisory on forums.ivanti.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Ivanti | Connect Secure | 22.7R2.1 up to, but not including, 22.7R2.1; 9.1R18.7 up to, but not including, 9.1R18.7; before 22.7_r2.3; before 9.1_r18.7 | 22.7R2.1, 9.1R18.7, 22.7_r2.3, 9.1_r18.7 |
| Ivanti | Policy Secure | 22.7R1.1 up to, but not including, 22.7R1.1; before 22.7_r1.2 | 22.7R1.1, 22.7_r1.2 |
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
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- 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:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (hackerone.com).
Official description
Argument injection in Ivanti Connect Secure before version 22.7R2.1 and 9.1R18.7 and Ivanti Policy Secure before version 22.7R1.1 allows a remote authenticated attacker with admin privileges to achieve remote code execution.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Argument Delimiters in a Command
The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.
How developers prevent this class of flaw
- Understand all the potential areas where untrusted inputs can enter your product: parameters or arguments, cookies, anything read from the network, environment variables, request headers as well as content, URL components, e-mail, files, databases, and any external systems that provide data to the application. Perform input validation at well-defined interfaces.
- Directly convert your input type into the expected data type, such as using a conversion function that translates a string into a number. After converting to the expected data type, ensure that the input's values fall within the expected range of allowable values and that multi-field consistencies are maintained.
- 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.
More Improper Neutralization of Argument Delimiters in a Command vulnerabilities (CWE-88)
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
Other vulnerabilities in Connect Secure
- 4.3 Medium severity
- 7.0 High severity
- 8.6 High severity
- 7.6 High severity
- 8.8 High severity
- 8.9 High severity
Recent Improper Neutralization of Argument Delimiters in a Command vulnerabilities
- 9.1 Critical severity
- 9.1 Critical severity
- 9.1 Critical severity
- 7.2 High severity
- 7.5 High severity
- 9.9 Critical severity
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