Rack up to 1.5.1 Rack::Session::Cookie memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Rack and classified as critical. Affected by this vulnerability is the function Rack::Session::Cookie. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2013-0263. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Rack and classified as critical. Affected by this issue is the function Rack::Session::Cookie. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Rack::Session::Cookie in Rack 1.5.x before 1.5.2, 1.4.x before 1.4.5, 1.3.x before 1.3.10, 1.2.x before 1.2.8, and 1.1.x before 1.1.6 allows remote attackers to guess the session cookie, gain privileges, and execute arbitrary code via a timing attack involving an HMAC comparison function that does not run in constant time.

The weakness was released 02/08/2013 by Ben Murphy (Website). The advisory is shared for download at twitter.com. This vulnerability is handled as CVE-2013-0263 since 12/06/2012. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 70534 (Debian DSA-2783-1 : librack-ruby - several vulnerabilities), 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 166267 (SUSE Enterprise Linux Security Update for Ruby On Rails 3.2 stack (SUSE-SU-2013:0707-2)).

Upgrading to version 1.1.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (81978), Tenable (70534), SecurityFocus (BID 57860†), OSVDB (89939†) and Secunia (SA52033†). Entries connected to this vulnerability are available at VDB-7681, VDB-8032, VDB-10950 and VDB-59851. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 70534
Nessus Name: Debian DSA-2783-1 : librack-ruby - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892783
OpenVAS Name: Debian Security Advisory DSA 2783-1 (librack-ruby - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Rack 1.1.0
Patch: github.com

Timelineinfo

12/06/2012 🔍
02/07/2013 +63 days 🔍
02/08/2013 +1 days 🔍
02/08/2013 +0 days 🔍
02/08/2013 +0 days 🔍
02/26/2013 +18 days 🔍
03/24/2015 +756 days 🔍
12/29/2021 +2472 days 🔍

Sourcesinfo

Product: github.com

Advisory: DSA-2783
Researcher: Ben Murphy
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-0263 (🔍)
GCVE (CVE): GCVE-0-2013-0263
GCVE (VulDB): GCVE-100-63536

OVAL: 🔍

X-Force: 81978
SecurityFocus: 57860 - Rack Timing Attack Remote Code Execution Vulnerability
Secunia: 52033
OSVDB: 89939
Vulnerability Center: 38555 - Rack \x27Rack::Session::Cookie\x27 Allows Remote Cookie Guessing, Privilege Escalation and Code Execution, High

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/29/2021 08:53
Changes: 03/24/2015 12:22 (67), 04/25/2017 11:13 (7), 12/29/2021 08:47 (4), 12/29/2021 08:49 (1), 12/29/2021 08:53 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!