CVE-2020-27523 Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 21 Jul 2021, 11:39 UTC Published: 11 Nov 2020, 15:15 UTC

CVE-2020-27523
Vulnerability Scoring

7.5
/10

Attack Complexity Details

  • Attack Complexity: Low Impact
  • Attack Vector: NETWORK
  • Privileges Required: None
  • Scope: UNCHANGED
  • User Interaction: NONE

CIA Impact Definition

  • Confidentiality:
  • Integrity:
  • Availability: HIGH IMPACT

CVE-2020-27523 Vulnerability Summary

Solstice-Pod up to 5.0.2 WEBRTC server mishandles the format-string specifiers %x; %p; %c and %s in the screen_key, display_name, browser_name, and operation_system parameter during the authentication process. This may crash the server and force Solstice-Pod to reboot, which leads to a denial of service.

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-27523. It helps visualize the difficulty level and privilege requirements needed to exploit this vulnerability, providing a quick assessment of its exploitation feasibility.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-27523, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

Impact Analysis

Below is the Impact Analysis for CVE-2020-27523, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.398% (probability of exploit)

EPSS Percentile: 73.58% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 26.42% of others.

CVE-2020-27523 Detailed Information and External References

References

CWE

CWE-134

CAPEC

  • Format String Injection CAPEC-135 An adversary includes formatting characters in a string input field on the target application. Most applications assume that users will provide static text and may respond unpredictably to the presence of formatting character. For example, in certain functions of the C programming languages such as printf, the formatting character %s will print the contents of a memory location expecting this location to identify a string and the formatting character %n prints the number of DWORD written in the memory. An adversary can use this to read or write to memory locations or files, or simply to manipulate the value of the resulting text in unexpected ways. Reading or writing memory may result in program crashes and writing memory could result in the execution of arbitrary code if the adversary can write to the program stack.
  • String Format Overflow in syslog() CAPEC-67 This attack targets applications and software that uses the syslog() function insecurely. If an application does not explicitely use a format string parameter in a call to syslog(), user input can be placed in the format string parameter leading to a format string injection attack. Adversaries can then inject malicious format string commands into the function call leading to a buffer overflow. There are many reported software vulnerabilities with the root cause being a misuse of the syslog() function.

Vulnerable Configurations

  • cpe:2.3:o:mersive:solstice_pod_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:2.6.0:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:2.6.0:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:2.6.2:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:2.6.2:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:2.7.0:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:2.7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:2.7.2:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:2.7.2:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:2.7.3:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:2.7.3:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:2.8.0:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:2.8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:2.8.4:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:2.8.4:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:2.8.7:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:2.8.7:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:2.8.9:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:2.8.9:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:3.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:3.0.1:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:3.0.3:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:3.0.3:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:3.0.5:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:3.0.5:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:3.1:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:3.1:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:3.1.1:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:3.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:3.2.0:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:3.2.0:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:3.2.1:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:3.2.1:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:3.3.0:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:3.3.0:*:*:*:*:*:*:*
  • cpe:2.3:o:mersive:solstice_pod_firmware:5.0.2:*:*:*:*:*:*:*
    cpe:2.3:o:mersive:solstice_pod_firmware:5.0.2:*:*:*:*:*:*:*
  • cpe:2.3:h:mersive:solstice_pod:-:*:*:*:*:*:*:*
    cpe:2.3:h:mersive:solstice_pod:-:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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