Administrator-authenticated root code execution via HTTP overflow
Published Oct 2, 2024 · Updated Oct 2, 2024
Stack-based buffer overflow in Cisco RV042, RV042G, RV320, and RV325 router firmware allows remote authenticated users to execute root code. The web management interface improperly validates input in crafted HTTP requests before writing it to a stack buffer. Valid Administrator credentials and management-interface access are required; successful exploitation grants root-level control of the router.
Summary
What happened
Stack-based buffer overflow in Cisco RV042, RV042G, RV320, and RV325 router firmware allows remote authenticated users to execute root code. The web management interface improperly validates input in crafted HTTP requests before writing it to a stack buffer. Valid Administrator credentials and management-interface access are required; successful exploitation grants root-level control of the router.
The record
- CVE
- CVE-2024-20518
- Published
- Oct 2, 2024
- Updated
- Oct 2, 2024
- Vendor
- ClamAV
- Product
- Cisco Small Business RV Series Router Firmware
- Classifications
- CWE-787, CWE-121, T1190
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Oct 2, 2024CVE publishedPublication date reported by the CVE source.
- Oct 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.1.17
- Affected versionversion=1.0.2.03
- Affected versionversion=1.1.0.09
- Affected versionversion=1.1.1.06
- Affected versionversion=1.1.1.19
- Affected versionversion=1.2.1.13
- Affected versionversion=1.2.1.14
- Affected versionversion=1.3.1.10
- Affected versionversion=1.3.1.12
- Affected versionversion=1.3.12.19-tm
- Affected versionversion=1.3.12.6-tm
- Affected versionversion=1.3.13.02-tm
- Affected versionversion=1.3.2.02
- Affected versionversion=1.4.2.15
- Affected versionversion=1.4.2.17
- Affected versionversion=1.4.2.19
- Affected versionversion=1.4.2.20
- Affected versionversion=1.4.2.22
- Affected versionversion=1.5.1.05
- Affected versionversion=1.5.1.11
- Affected versionversion=1.5.1.13
- Affected versionversion=3.0.0.19-tm
- Affected versionversion=3.0.0.1-tm
- Affected versionversion=3.0.2.01-tm
- Affected versionversion=4.0.0.7
- Affected versionversion=4.0.2.08-tm
- Affected versionversion=4.0.3.03-tm
- Affected versionversion=4.0.4.02-tm
- Affected versionversion=4.1.0.02-tm
- Affected versionversion=4.1.1.01
- Affected versionversion=4.2.1.02
- Affected versionversion=4.2.2.08
- Affected versionversion=4.2.3.03
- Affected versionversion=4.2.3.06
- Affected versionversion=4.2.3.07
- Affected versionversion=4.2.3.08
- Affected versionversion=4.2.3.09
- Affected versionversion=4.2.3.10
- Affected versionversion=4.2.3.14
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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