Apple Xcode up to 12.5.1 IDE Xcode Server request smuggling

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Apple Xcode up to 12.5.1 and classified as problematic. This issue affects some unknown processing of the component IDE Xcode Server. Performing a manipulation results in an unknown weakness. This vulnerability is known as CVE-2019-20372. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Apple Xcode up to 12.5.1 (Programming Tool Software). It has been classified as problematic. This affects an unknown part of the component IDE Xcode Server. CWE is classifying the issue as CWE-444. The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination. The impact remains unknown.

The weakness was published 09/20/2021 as HT212818 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2019-20372. Neither technical details nor an exploit are publicly available. The advisory points out:

Multiple issues in nginx

Upgrading to version 13.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

Multiple issues were addressed by updating nginx to version 1.21.0.

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Productinfo

Type

Programming Tool Software

Vendor

Apple

Name

Xcode

Version

License

commercial

Website

Vendor: https://www.apple.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Request smuggling
CWE: CWE-444
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Xcode 13.0
Patch: github.com

Timelineinfo

01/09/2020 🔍
09/20/2021 +619 days 🔍
09/20/2021 +0 days 🔍
09/21/2021 +1 days 🔍
10/01/2021 +9 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT212818
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-20372 (🔍)
GCVE (CVE): GCVE-0-2019-20372
GCVE (VulDB): GCVE-100-183165

Entryinfo

Created: 09/21/2021 12:46
Updated: 10/01/2021 00:33
Changes: 09/21/2021 12:46 (3), 09/21/2021 12:47 (14), 09/21/2021 12:50 (28), 10/01/2021 00:23 (4), 10/01/2021 00:33 (20)
Complete: 🔍
Cache ID: 216::103