CVE-2021-34548

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-34548
An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-003. An attacker can forge RELAY_END or RELAY_RESOLVED to bypass the intended access control for ending a stream.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
http://packetstormsecurity.com/files/163510/Tor-Half-Closed-Connection-Stream-Confusion.html Third Party Advisory VDB Entry
https://blog.torproject.org/node/2041 Release Notes Vendor Advisory
https://gitlab.torproject.org/tpo/core/tor/-/issues/40389 Broken Link
https://security.gentoo.org/glsa/202107-25 Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
History

08 Aug 2023, 14:21

Type Values Removed Values Added
CWE CWE-863 CWE-290

14 Sep 2021, 14:38

Type Values Removed Values Added
References (MISC) http://packetstormsecurity.com/files/163510/Tor-Half-Closed-Connection-Stream-Confusion.html - (MISC) http://packetstormsecurity.com/files/163510/Tor-Half-Closed-Connection-Stream-Confusion.html - Third Party Advisory, VDB Entry
References (GENTOO) https://security.gentoo.org/glsa/202107-25 - (GENTOO) https://security.gentoo.org/glsa/202107-25 - Third Party Advisory

15 Jul 2021, 16:15

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202107-25 -
  • (MISC) http://packetstormsecurity.com/files/163510/Tor-Half-Closed-Connection-Stream-Confusion.html -

06 Jul 2021, 13:46

Type Values Removed Values Added
References (CONFIRM) https://blog.torproject.org/node/2041 - (CONFIRM) https://blog.torproject.org/node/2041 - Release Notes, Vendor Advisory
References (MISC) https://gitlab.torproject.org/tpo/core/tor/-/issues/40389 - (MISC) https://gitlab.torproject.org/tpo/core/tor/-/issues/40389 - Broken Link
CPE cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
CWE CWE-863
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5

29 Jun 2021, 11:41

Type Values Removed Values Added
New CVE
Information

Published : 2021-06-29 11:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-34548

Mitre link : CVE-2021-34548

CVE.ORG link : CVE-2021-34548

JSON object : View

Products Affected

torproject

  • tor
CWE
CWE-290

Authentication Bypass by Spoofing