VDB-112207 · CVE-2018-0093 · BID 102735

Cisco Web Security Appliance Web-based Management Interface Reflected cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$5k-$25k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco Web Security Appliance. The impacted element is an unknown function of the component Web-based Management Interface. This manipulation causes cross site scripting (Reflected). This vulnerability is tracked as CVE-2018-0093. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in Cisco Web Security Appliance (Anti-Malware Software) (the affected version is unknown) and classified as problematic. Affected by this vulnerability is an unknown code of the component Web-based Management Interface. The manipulation with an unknown input leads to a cross site scripting vulnerability (Reflected). The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

A vulnerability in the web-based management interface of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information. Cisco Bug IDs: CSCvf37392.

The bug was discovered 01/17/2018. The weakness was disclosed 01/18/2018 with Cisco as cisco-sa-20180117-wsa1 as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2018-0093 since 11/27/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/01/2021). The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316305 (Cisco Web Security Appliance Reflected Cross-Site Scripting Vulnerability(cisco-sa-20180117-wsa1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 102735†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Reflected
Class: Cross site scripting / Reflected
CWE: CWE-79 / CWE-94 / CWE-74
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/27/2017 🔍
01/17/2018 +51 days 🔍
01/17/2018 +0 days 🔍
01/18/2018 +1 days 🔍
01/18/2018 +0 days 🔍
01/19/2018 +1 days 🔍
02/01/2021 +1109 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20180117-wsa1
Researcher: Cisco
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0093 (🔍)
GCVE (CVE): GCVE-0-2018-0093
GCVE (VulDB): GCVE-100-112207
SecurityFocus: 102735 - Cisco Web Security Appliance CVE-2018-0093 Cross Site Scripting Vulnerability
SecurityTracker: 1040250

Entryinfo

Created: 01/19/2018 07:55
Updated: 02/01/2021 10:08
Changes: 01/19/2018 07:55 (63), 12/24/2019 08:36 (5), 02/01/2021 10:05 (2), 02/01/2021 10:08 (1)
Complete: 🔍
Cache ID: 216::103

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

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