Cyber Resilience

CVE-2023-49515

MediumPublic PoC

Published: 17 January 2024

Published
17 January 2024
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0011 29.2th percentile
Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-49515 is a medium-severity Insecure Storage of Sensitive Information (CWE-922) vulnerability in Tp-Link Tapo C200 Firmware. Its CVSS base score is 4.6 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 29.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Insecure Permissiosn vulnerability in TP Link TC70 and C200 WIFI Camera v.3 firmware v.1.3.4 and fixed in v.1.3.11 allows a physically proximate attacker to obtain sensitive information via a connection to the UART pin components.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
Why these techniques?

Insecure UART permissions enable physical access to interrupt boot, modify bootargs for root shell (/bin/sh), facilitating exploitation for privilege escalation (T1068), Unix shell execution (T1059.004), and data collection from local system/file system (T1005).

Affected Assets

tp-link
tapo c200 firmware
1.1.22, 1.3.4, 1.3.9
tp-link
tapo tc70 firmware
1.1.22, 1.3.4, 1.3.9

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-922

Tracking information locations and access supports secure storage practices instead of insecure ones.

addresses: CWE-922

Establishing an alternate site with equivalent protections directly mitigates insecure storage of sensitive backup information.

addresses: CWE-922

Requiring protection of backup information directly addresses insecure storage of sensitive data in backups.

addresses: CWE-922

Policy explicitly addresses insecure storage of CUI on external systems, requiring compliant handling and protections.

addresses: CWE-922

Proper categorization drives selection of storage controls that keep sensitive information from being stored insecurely.

addresses: CWE-922

The control explicitly requires secure storage mechanisms for sensitive information, closing the insecure-storage weakness class.

addresses: CWE-922

Storing information as fragments on distinct components is an architectural control that avoids insecure single-location storage of the complete sensitive data set.

addresses: CWE-922

OPSEC requirements improve handling and storage practices for sensitive supply-chain information.

References