Cyber Resilience

CVE-2024-7217

Memory Safety in Totolink Ca300-Poe Firmware 6.2c.884

Public PoCMemory Safety
Published
30 July 2024
Modified
21 November 2024
CVSS Score v4 5.3
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.068 93th percentile
Risk Priority 41 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2024-7217 is a medium-severity Classic Buffer Overflow (CWE-120) vulnerability in Totolink Ca300-Poe Firmware. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2024-7217 is a buffer overflow vulnerability in the loginauth function within the file /cgi-bin/cstecgi.cgi on TOTOLINK CA300-PoE firmware version 6.2c.884. The issue stems from improper handling of the password argument and is tracked as CWE-120. It was publicly disclosed on 2024-07-30 with a CVSS 4.0 score of 5.3.

An authenticated remote attacker can supply a crafted password value to trigger the overflow. Successful exploitation may allow limited manipulation of confidentiality, integrity, and availability on the affected device, and a proof-of-concept has already been published.

The vendor was notified prior to disclosure but provided no response or patch. Public references consist of exploit details hosted on GitHub and entries in the VulDB database; no official mitigation guidance is available. The associated EPSS score has remained flat at 0.0848 with no material increase since publication.

EU & UK References

Vulnerability Data

A vulnerability was found in TOTOLINK CA300-PoE 6.2c.884. It has been declared as critical. This vulnerability affects the function loginauth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument password leads to buffer overflow. The attack can be initiated remotely.…

more

The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-272788. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CWE(s)
CWE-120

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-24145Same product: Totolink Ca300-Poe
CVE-2023-24146Same product: Totolink Ca300-Poe
CVE-2023-24148Same product: Totolink Ca300-Poe
CVE-2025-6618Same product: Totolink Ca300-Poe
CVE-2023-24142Same product: Totolink Ca300-Poe
CVE-2023-24138Same product: Totolink Ca300-Poe
CVE-2023-24144Same product: Totolink Ca300-Poe
CVE-2025-6620Same product: Totolink Ca300-Poe
CVE-2025-44860Same product: Totolink Ca300-Poe
CVE-2023-24161Same product: Totolink Ca300-Poe

Affected Assets

totolink
ca300-poe firmware
6.2c.884

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V5.2.1

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and analysis can find missing size checks before deployment.

SI-10 Information Input Validation good match

Input validation directly enforces size checks before buffer copies.

SA-8 Security and Privacy Engineering Principles partial match

Engineering principles require bounds checking and safe buffer handling in design.

SI-16 Memory Protection partial match

Memory protection limits the impact of an overflow once it occurs.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure development practices directly enforce bounds checking and input validation that prevent classic buffer overflows.

ID.RA-01 partial match
prevents

Vulnerability identification processes such as code review or scanning detect classic buffer overflows before exploitation.

PR.PS-02 partial match
prevents

Routine patching replaces vulnerable code containing unchecked buffer copies with corrected versions.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match
prevents

Secure coding directly requires bounds-checked memory operations, addressing the root cause of CWE-120.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development and acceptance can detect buffer overflows through fuzzing and static analysis, though it does not prevent them at the source.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates processes that can include input validation and bounds checking to prevent buffer overflows.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify input-size validation and safe buffer handling to mitigate classic buffer overflows.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure system architecture and engineering principles promote defensive coding patterns that reduce the likelihood of unchecked buffer copies.

References