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Analyze » Squid HTTP Proxy project » SQU1782145878

Incident Score: Analysis & Impact (SQU1782145878)

The details regarding individual company incidents & reports gives you full view from every side.

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-1
Company Score Before Incident781 / 1000
Company Score After Incident780 / 1000
Company LinkView Squid HTTP Proxy project Profile
INCIDENT NUMBERSQU1782145878
Type of Cyber IncidentVulnerability
ATTACK VECTORMalformed FTP directory listing via attacker-controlled FTP server
DATA EXPOSEDHTTP headers (including passwords, API...
INCIDENT DATE17/01/1997
STATUSVulnerability patched and disclosed

Key Highlights From The Incident Analysis

  • Timeline of Squid HTTP Proxy project's Vulnerability and lateral movement inside company's environment.
  • Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
  • How Rankiteo’s incident engine converts technical details into a normalized incident score.
  • How this cyber incident impacts Squid HTTP Proxy project Rankiteo cyber scoring and cyber rating.
  • Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.

Full Incident Analysis Transcript

In this Rankiteo incident briefing, we review the Squid HTTP Proxy project breach identified under incident ID SQU1782145878.

The analysis begins with a detailed overview of Squid HTTP Proxy project's information like the linkedin page: https://www.linkedin.com/company/squid-http-proxy-project, the number of followers: 0, the industry type: IT Services and IT Consulting and the number of employees: 1 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 781 and after the incident was 780 with a difference of -1 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on Squid HTTP Proxy project and their customers.

Squid Proxy recently reported "Squidbleed: 29-Year-Old Vulnerability in Squid Proxy Exposes Sensitive Data", a noteworthy cybersecurity incident.

Security researchers at Calif.io uncovered a critical memory disclosure vulnerability in Squid Proxy, dubbed Squidbleed, which has remained undetected since 1997.

The disruption is felt across the environment, affecting Squid Proxy (versions with FTP support enabled), and exposing HTTP headers (including passwords, API keys, Authorization headers, session tokens).

In response, moved swiftly to contain the threat with measures like Disable FTP support unless explicitly required, and began remediation that includes Single-line null check fix merged into Squid’s repository.

The case underscores how Vulnerability patched and disclosed, teams are taking away lessons such as Highlights the risks of legacy code and the effectiveness of AI-assisted security audits in identifying subtle API contract violations, and recommending next steps like Disable FTP support in Squid Proxy unless explicitly required. Apply the patch with the null check fix. Monitor for AI-assisted security tools to improve vulnerability detection, with advisories going out to stakeholders covering Users advised to disable FTP support or apply the patch immediately.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

MITRE ATT&CK® Correlation Analysis

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (90%), with evidence including heap buffer overread in Squid’s FTP directory listing parser, and attacker-controlled FTP server reachable on TCP port 21. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with moderate to high confidence (80%), supported by evidence indicating leak HTTP headers including passwords and API keys from other users and Steal Application Access Token (T1528) with moderate to high confidence (80%), supported by evidence indicating exposing Authorization headers and session tokens as part of the FTP response. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating confirmed heap overread of up to 4,065 bytes, exposing stale HTTP request data. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating data exfiltration via malformed FTP responses. Under the Defense Evasion tactic, the analysis identified Exploitation for Privilege Escalation (T1068) with moderate confidence (60%), supported by evidence indicating vulnerability remained undetected since 1997, evading traditional code reviews. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Exploit Public-Facing Application (90%)
Credential Access
Unsecured Credentials: Credentials In Files (80%)
Steal Application Access Token (80%)
Collection
Data from Local System (90%)
Exfiltration
Exfiltration Over C2 Channel (70%)
Defense Evasion
Exploitation for Privilege Escalation (60%)

Sources & References