Unauthenticated denial of service via IPsec heap overflow
Published Dec 11, 2024 · Updated Dec 12, 2024
Heap-based buffer overflow in Ivanti Connect Secure before 22.7R2.3 allows remote attackers to cause a denial of service. Ivanti discloses that IPsec processing writes beyond a heap buffer, but no affected function, message field, or malformed-input operation is public. The IPsec endpoint is reachable without authentication, and triggering the overflow interrupts availability without reported data disclosure or modification.
Summary
What happened
Heap-based buffer overflow in Ivanti Connect Secure before 22.7R2.3 allows remote attackers to cause a denial of service. Ivanti discloses that IPsec processing writes beyond a heap buffer, but no affected function, message field, or malformed-input operation is public. The IPsec endpoint is reachable without authentication, and triggering the overflow interrupts availability without reported data disclosure or modification.
The record
- CVE
- CVE-2024-37377
- Published
- Dec 11, 2024
- Updated
- Dec 12, 2024
- Vendor
- Ivanti
- Product
- Connect Secure
- Classifications
- CWE-787, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 11, 2024CVE publishedPublication date reported by the CVE source.
- Dec 12, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=22.7R2.3 <22.7R2.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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