CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.0 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, has been found in Tor 0.2.1.6 (Network Encryption Software). Affected by this issue is an unknown functionality of the component Hidden Service Handler. The manipulation with an unknown input leads to a denial of service vulnerability (Hang). Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.
The weakness was shared 04/06/2015 as confirmed mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2015-2928 since 04/06/2015. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 82624 (Debian DSA-3216-1 : tor - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175355 (Debian Security Update for tor (DSA 3216-1)).
Upgrading to version 0.2.5.12 or 0.2.6.7 eliminates this vulnerability. The upgrade is hosted for download at blog.torproject.org.
The vulnerability is also documented in the databases at X-Force (102104) and Tenable (82624). The entry 74685 is related to this item.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.0
VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: HangClass: Denial of service / Hang
CWE: CWE-404
ATT&CK: T1499
Local: No
Remote: Yes
Availability: 🔍
Status: Unproven
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 82624
Nessus Name: Debian DSA-3216-1 : tor - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 867773
OpenVAS Name: Fedora Update for tor FEDORA-2015-5890
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Tor 0.2.5.12/0.2.6.7
Timeline
01/01/2012 🔍04/06/2015 🔍
04/06/2015 🔍
04/08/2015 🔍
04/10/2015 🔍
10/09/2015 🔍
05/03/2022 🔍
Sources
Advisory: 15600Status: Confirmed
CVE: CVE-2015-2928 (🔍)
OVAL: 🔍
X-Force: 102104 - Tor hidden service denial of service
Vulnerability Center: 53313 - Tor 0.2.6 - 0.2.6.6, 0.2.5 - 0.2.5.11, 0.2.4 - 0.2.4.26 Remote DoS via Crafted Data - CVE-2015-2928, Medium
SecurityFocus: 73932
See also: 🔍
Entry
Created: 04/10/2015 09:35Updated: 05/03/2022 08:00
Changes: 04/10/2015 09:35 (61), 02/04/2018 10:18 (6), 05/03/2022 07:48 (3), 05/03/2022 07:53 (18), 05/03/2022 08:00 (1)
Complete: 🔍
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