Google Go up to 1.4.2 net/http net/textproto/reader.go Content Length HTTP request smuggling

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Google Go up to 1.4.2. This issue affects some unknown processing in the library net/textproto/reader.go of the component net/http. Performing a manipulation of the argument Content Length as part of HTTP Request results in request smuggling (HTTP). This vulnerability is identified as CVE-2015-5739. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Google Go up to 1.4.2 (Programming Language Software). This affects some unknown functionality in the library net/textproto/reader.go of the component net/http. The manipulation of the argument Content Length as part of a HTTP Request leads to a request smuggling vulnerability (HTTP). 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The net/http library in net/textproto/reader.go in Go before 1.4.3 does not properly parse HTTP header keys, which allows remote attackers to conduct HTTP request smuggling attacks via a space instead of a hyphen, as demonstrated by "Content Length" instead of "Content-Length."

The bug was discovered 07/29/2015. The weakness was released 10/18/2017 as not defined mailinglist post (oss-sec). It is possible to read the advisory at seclists.org. This vulnerability is uniquely identified as CVE-2015-5739 since 08/05/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 26 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 85633 (Amazon Linux AMI : golang / docker (ALAS-2015-588)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350114 (Amazon Linux Security Advisory for golang,docker: ALAS-2015-588).

Upgrading to version 1.4.3 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (85633) and SecurityFocus (BID 76281†). Entry connected to this vulnerability is available at VDB-107992. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: HTTP
Class: Request smuggling / HTTP
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: 🔍

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Nessus ID: 85633
Nessus Name: Amazon Linux AMI : golang / docker (ALAS-2015-588)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: ALAS-2015-588
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Go 1.4.3
Patch: github.com

Timelineinfo

07/29/2015 🔍
07/29/2015 +0 days 🔍
08/05/2015 +7 days 🔍
08/24/2015 +19 days 🔍
08/26/2015 +2 days 🔍
10/18/2017 +784 days 🔍
10/18/2017 +0 days 🔍
10/19/2017 +1 days 🔍
01/04/2023 +1903 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: 117ddcb83d7f42d6aa72241240af99ded81118e9
Researcher: R, amp, eacute, gis Leroy
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-5739 (🔍)
GCVE (CVE): GCVE-0-2015-5739
GCVE (VulDB): GCVE-100-107991
SecurityFocus: 76281 - Golang Go CVE-2015-5739 HTTP Header Injection Vulnerability

See also: 🔍

Entryinfo

Created: 10/19/2017 09:19
Updated: 01/04/2023 08:05
Changes: 10/19/2017 09:19 (81), 11/26/2019 08:02 (4), 01/17/2021 10:45 (2), 01/04/2023 07:58 (4), 01/04/2023 08:05 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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