VDB-112951 · CVE-2017-15400 · Qualys 176426

Google Chrome OS prior 62.0.3202.74 CUPS PPD File crlf injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$5k-$25k0.00

A vulnerability classified as critical was found in Google Chrome OS (Web Browser). Affected by this vulnerability is some unknown processing of the component CUPS. The manipulation as part of a PPD File leads to a crlf injection vulnerability. The CWE definition for the vulnerability is CWE-93. The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Insufficient restriction of IPP filters in CUPS in Google Chrome OS prior to 62.0.3202.74 allowed a remote attacker to execute a command with the same privileges as the cups daemon via a crafted PPD file, aka a printer zeroconfig CRLF issue.

The bug was discovered 10/27/2017. The weakness was released 02/07/2018 (Website). It is possible to read the advisory at chromereleases.googleblog.com. This vulnerability is known as CVE-2017-15400 since 10/17/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/02/2020). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability was handled as a non-public zero-day exploit for at least 103 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 111014 (Debian DSA-4243-1 : cups - 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 and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176426 (Debian Security Update for cups (DSA 4243-1)).

Upgrading to version 62.0.3202.74 eliminates this vulnerability. A possible mitigation has been published 6 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (111014). Entries connected to this vulnerability are available at 122780, 128794, 128795 and 129051.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Crlf injection
CWE: CWE-93 / CWE-74 / CWE-707
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 111014
Nessus Name: Debian DSA-4243-1 : cups - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Chrome OS 62.0.3202.74

Timelineinfo

10/17/2017 🔍
10/27/2017 +10 days 🔍
02/07/2018 +103 days 🔍
02/07/2018 +0 days 🔍
02/08/2018 +1 days 🔍
07/11/2018 +153 days 🔍
07/12/2018 +1 days 🔍
01/02/2020 +539 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: chromereleases.googleblog.com
Status: Not defined

CVE: CVE-2017-15400 (🔍)
OVAL: 🔍
See also: 🔍

Entryinfo

Created: 02/08/2018 07:00
Updated: 01/02/2020 15:35
Changes: 02/08/2018 07:00 (69), 01/02/2020 15:35 (9)
Complete: 🔍

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