Apple Mac OS X up to 10.8 curl 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.
9.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Apple Mac OS X up to 10.8. This issue affects some unknown processing of the component curl. Performing a manipulation results in memory corruption. This vulnerability is known as CVE-2013-0249. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.8 (Operating System). It has been classified as critical. This affects some unknown processing of the component curl. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Stack-based buffer overflow in the Curl_sasl_create_digest_md5_message function in lib/curl_sasl.c in curl and libcurl 7.26.0 through 7.28.1, when negotiating SASL DIGEST-MD5 authentication, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long string in the realm parameter in a (1) POP3, (2) SMTP or (3) IMAP message.

The weakness was published 10/22/2013 by Volema as APPLE-SA-2013-10-22-3 as confirmed mailinglist post (Apple Security Mailinglist). The advisory is shared at lists.apple.com. The mailinglist post contains:

Multiple vulnerabilities existed in curl, the most serious of which may lead to arbitrary code execution. These issues were addressed by updating curl to version 7.30.0 (sic)
This vulnerability is uniquely identified as CVE-2013-0249 since 12/06/2012. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 72053 (GLSA-201401-14 : cURL: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks.

Upgrading to version 10.9 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 13109.

The vulnerability is also documented in the databases at X-Force (81935), Exploit-DB (24487), Tenable (72053), SecurityFocus (BID 57842†) and OSVDB (89988†). Similar entries are available at VDB-7621, VDB-10946, VDB-10932 and VDB-10931. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 72053
Nessus Name: GLSA-201401-14 : cURL: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 866064
OpenVAS Name: Fedora Update for curl FEDORA-2013-11574
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.9
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

12/06/2012 🔍
02/06/2013 +62 days 🔍
02/11/2013 +5 days 🔍
03/08/2013 +25 days 🔍
10/22/2013 +228 days 🔍
10/22/2013 +0 days 🔍
10/23/2013 +1 days 🔍
01/21/2014 +90 days 🔍
07/15/2015 +540 days 🔍
11/19/2024 +3415 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: APPLE-SA-2013-10-22-3
Researcher: Volema
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-0249 (🔍)
GCVE (CVE): GCVE-0-2013-0249
GCVE (VulDB): GCVE-100-10905

OVAL: 🔍

X-Force: 81935
SecurityFocus: 57842 - cURL/libcURL 'Curl_sasl_create_digest_md5_message()' Stack Buffer Overflow Vulnerability
OSVDB: 89988
SecurityTracker: 1028093
Vulnerability Center: 51328 - cURL\\libcURL Digest MD5 Stack Based Buffer Overflow Vulnerability Allows Remote Code Execution, Medium

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 10/23/2013 17:41
Updated: 11/19/2024 05:48
Changes: 10/23/2013 17:41 (77), 07/13/2017 09:12 (13), 05/31/2021 15:23 (2), 05/31/2021 15:29 (1), 11/19/2024 05:48 (14)
Complete: 🔍
Cache ID: 216:5CF:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!