Vulnerability Details : CVE-2021-29462

The Portable SDK for UPnP Devices is an SDK for development of UPnP device and control point applications. The server part of pupnp (libupnp) appears to be vulnerable to DNS rebinding attacks because it does not check the value of the `Host` header. This can be mitigated by using DNS revolvers which block DNS-rebinding attacks. The vulnerability is fixed in version 1.14.6 and later.

Vulnerability category: Input validation

Published 2021-04-20 21:15:08

Updated 2022-08-03 10:20:03

Source GitHub, Inc.

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-29462

Probability of exploitation activity in the next 30 days: 0.18%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 54 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-29462

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	nvd@nist.gov
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	nvd@nist.gov
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
7.6	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L	2.1	5.5	security-advisories@github.com
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: Low

CWE ids for CVE-2021-29462

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: security-advisories@github.com (Secondary)
CWE-345 Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-29462

http://www.openwall.com/lists/oss-security/2021/04/20/4

oss-security - DNS rebinding vulnerability in pupnp
Mailing List;Third Party Advisory
https://github.com/pupnp/pupnp/security/advisories/GHSA-6hqq-w3jq-9fhg

DNS rebinding in pupnp · Advisory · pupnp/pupnp · GitHub
Third Party Advisory

Products affected by CVE-2021-29462

Pupnp Project » Pupnp
Versions before (<) 1.14.6
cpe:2.3:a:pupnp_project:pupnp:*:*:*:*:*:*:*:*
Matching versions