{"id":"CVE-2013-5557","aliases":["EUVD-2013-5397","GHSA-4gw4-f4xq-52c8"],"status":"published","title":"The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security...","description":"The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security Appliance (ASA) Software 9.1(.2) and earlier allows remote authenticated users to cause a denial of service (device crash or error-recovery event) via an HTTP request that triggers a rewrite, aka Bug ID CSCug91577.","severity":{"version":"2.0","score":6.3,"vector":"AV:N/AC:M/Au:S/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02008,"percentile":0.80989,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2015-02-07T02:00:00Z","modified":"2026-06-16T23:59:00Z","products":[{"vendor":"cisco","product":"adaptive_security_appliance_software"}],"references":[{"url":"http://www.securityfocus.com/bid/72529","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://tools.cisco.com/security/center/viewAlert.x?alertId=37383","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5557","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Broken Link","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/100694","tags":["vdb-entry","x_refsource_XF","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-5557"},{"url":"https://github.com/advisories/GHSA-4gw4-f4xq-52c8"}],"sources":{"cve":[{"id":"CVE-2013-5557","description":"The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security Appliance (ASA) Software 9.1(.2) and earlier allows remote authenticated users to cause a denial of service (device crash or error-recovery event) via an HTTP request that triggers a rewrite, aka Bug ID CSCug91577.","status":"published","published":"2015-02-07T02:00:00Z","modified":"2024-08-06T17:15:21.435Z","updated_at":"2026-11-02T14:34:55.825574Z"}],"euvd":[{"id":"EUVD-2013-5397","description":"The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security Appliance (ASA) Software 9.1(.2) and earlier allows remote authenticated users to cause a denial of service (device crash or error-recovery event) via an HTTP request that triggers a rewrite, aka Bug ID CSCug91577.","status":"published","published":"2015-02-07T02:00:00Z","modified":"2024-08-06T17:15:21Z","updated_at":"2026-11-03T01:56:28.709538Z"}],"ghsa":[{"id":"GHSA-4gw4-f4xq-52c8","title":"The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security...","description":"The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security Appliance (ASA) Software 9.1(.2) and earlier allows remote authenticated users to cause a denial of service (device crash or error-recovery event) via an HTTP request that triggers a rewrite, aka Bug ID CSCug91577.","status":"published","published":"2022-05-17T01:31:21Z","modified":"2023-02-03T05:04:27Z","updated_at":"2026-11-02T14:53:33.273438Z"}],"nvd":[{"id":"CVE-2013-5557","description":"The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security Appliance (ASA) Software 9.1(.2) and earlier allows remote authenticated users to cause a denial of service (device crash or error-recovery event) via an HTTP request that triggers a rewrite, aka Bug ID CSCug91577.","status":"published","published":"2015-02-07T04:59:00.047Z","modified":"2026-06-16T23:59:00.73Z","cvss":[{"version":"2.0","score":6.3,"vector":"AV:N/AC:M/Au:S/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:02:51.408338Z"}]}}